diff --git a/curriculumsearch/src/main/java/com/roshka/controller/PostulanteController.java b/curriculumsearch/src/main/java/com/roshka/controller/PostulanteController.java
index b34392c..0398649 100644
--- a/curriculumsearch/src/main/java/com/roshka/controller/PostulanteController.java
+++ b/curriculumsearch/src/main/java/com/roshka/controller/PostulanteController.java
@@ -55,6 +55,8 @@ public class PostulanteController {
     InstitucionRepository institucionRepository;
     DepartamentoRepository depRepo;
     CiudadRepository ciuRepo;
+    EstudioRepository estudioRepository;
+    PostulanteTecnologiaRepository postulanteTecnologiaRepository;
     ConvocatoriaRepository cargoRepo;
     CargoRepository carRepo;
 
@@ -62,13 +64,17 @@ public class PostulanteController {
     public PostulanteController(
             PostulanteRepository post, TecnologiaRepository tecRepo, ExperienciaRepository expRepo,
             InstitucionRepository institucionRepository, DepartamentoRepository depRepo,
-            CiudadRepository ciuRepo, ConvocatoriaRepository cargoRepo, CargoRepository carRepo) {
+            CiudadRepository ciuRepo, EstudioRepository estudioRepository,
+            PostulanteTecnologiaRepository postulanteTecnologiaRepository,
+            ConvocatoriaRepository cargoRepo, CargoRepository carRepo) {
         this.post = post;
         this.tecRepo = tecRepo;
         this.expRepo = expRepo;
         this.institucionRepository = institucionRepository;
         this.depRepo = depRepo;
         this.ciuRepo = ciuRepo;
+        this.estudioRepository = estudioRepository;
+        this.postulanteTecnologiaRepository = postulanteTecnologiaRepository;
         this.cargoRepo =cargoRepo;
         this.carRepo=carRepo;
     }
@@ -140,17 +146,24 @@ public class PostulanteController {
 
     @PostMapping(value = "/postulante",consumes = "application/json")
     public String guardarPostulante(@RequestBody Postulante postulante){
+        //Codigo encargado de modificar postulacion si se envia mismo CI
+        Postulante postulantex = post.findByNroDocument(postulante.getnroDocument());
+        if(postulantex != null){
+            estudioRepository.findByPostulante(postulantex).forEach(x -> estudioRepository.delete(x));
+            expRepo.findByPostulante(postulantex).forEach(x -> expRepo.delete(x));
+            postulanteTecnologiaRepository.findByPostulante(postulantex).forEach(x -> postulanteTecnologiaRepository.delete(x));
+            postulante.setId(postulantex.getId());
+        }
         postulante.getTecnologias().stream().filter(
                     tec -> tec.getTecnologia().getId() != 0 
             ).forEach(
                     tec -> tec.setTecnologia(tecRepo.getById(tec.getTecnologia().getId()))
-                    ); 
-
-        
+        );
         /* for (int i = 0; i < postulante.getPostulaciones().size(); i++) {
             postulante.getPostulaciones().set(i, cargoRepo.getById(postulante.getPostulaciones().get(i).getId()));
         }
          */
+
         for(Estudio estudio: postulante.getEstudios()){
             String nombreIns = "";
             nombreIns = estudio.getInstitucion().getNombre().toLowerCase();
diff --git a/curriculumsearch/src/main/java/com/roshka/modelo/PostulanteTecnologia.java b/curriculumsearch/src/main/java/com/roshka/modelo/PostulanteTecnologia.java
index b9442da..4a041c2 100644
--- a/curriculumsearch/src/main/java/com/roshka/modelo/PostulanteTecnologia.java
+++ b/curriculumsearch/src/main/java/com/roshka/modelo/PostulanteTecnologia.java
@@ -33,6 +33,7 @@ public class PostulanteTecnologia {
     @JoinColumn
    private Tecnologia tecnologia;
 
+
     @ManyToOne()
     @JoinColumn
     @JsonBackReference(value = "postulantetecnologia-postulante")
diff --git a/curriculumsearch/src/main/java/com/roshka/modelo/ReferenciaPersonal.java b/curriculumsearch/src/main/java/com/roshka/modelo/ReferenciaPersonal.java
index 360f8dd..00ed654 100644
--- a/curriculumsearch/src/main/java/com/roshka/modelo/ReferenciaPersonal.java
+++ b/curriculumsearch/src/main/java/com/roshka/modelo/ReferenciaPersonal.java
@@ -1,13 +1,6 @@
 package com.roshka.modelo;
 
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
-import javax.persistence.JoinColumn;
-import javax.persistence.ManyToOne;
-import javax.persistence.Table;
+import javax.persistence.*;
 import javax.validation.constraints.NotBlank;
 
 import com.fasterxml.jackson.annotation.JsonBackReference;
@@ -31,7 +24,7 @@ public class ReferenciaPersonal {
     @Column(name = "relacion")
     private String relacion;
 
-    @ManyToOne(optional = false)
+    @ManyToOne(cascade = CascadeType.ALL, optional = false)
     @JoinColumn
     @JsonBackReference
     private Postulante postulante;
diff --git a/curriculumsearch/src/main/java/com/roshka/repositorio/EstudioRepository.java b/curriculumsearch/src/main/java/com/roshka/repositorio/EstudioRepository.java
index 50d9336..ad25f79 100644
--- a/curriculumsearch/src/main/java/com/roshka/repositorio/EstudioRepository.java
+++ b/curriculumsearch/src/main/java/com/roshka/repositorio/EstudioRepository.java
@@ -1,10 +1,14 @@
 package com.roshka.repositorio;
 
+import com.roshka.modelo.Postulante;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import com.roshka.modelo.Estudio;
 
+import java.util.List;
+
 public interface EstudioRepository extends JpaRepository<Estudio,Long>{
 
+    public List<Estudio> findByPostulante(Postulante postulante);
 	
 }
diff --git a/curriculumsearch/src/main/java/com/roshka/repositorio/ExperienciaRepository.java b/curriculumsearch/src/main/java/com/roshka/repositorio/ExperienciaRepository.java
index cebad2a..5eadaaf 100644
--- a/curriculumsearch/src/main/java/com/roshka/repositorio/ExperienciaRepository.java
+++ b/curriculumsearch/src/main/java/com/roshka/repositorio/ExperienciaRepository.java
@@ -1,5 +1,6 @@
 package com.roshka.repositorio;
 
+import com.roshka.modelo.Postulante;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 
@@ -9,4 +10,6 @@ import com.roshka.modelo.Experiencia;
 
 public interface ExperienciaRepository extends JpaRepository<Experiencia,Long> {
     public List<Experiencia> findByCargoLike(String cargo);
+
+    public List<Experiencia> findByPostulante(Postulante postulante);
 }
diff --git a/curriculumsearch/src/main/java/com/roshka/repositorio/PostulanteRepository.java b/curriculumsearch/src/main/java/com/roshka/repositorio/PostulanteRepository.java
index fc0d139..b10de4c 100644
--- a/curriculumsearch/src/main/java/com/roshka/repositorio/PostulanteRepository.java
+++ b/curriculumsearch/src/main/java/com/roshka/repositorio/PostulanteRepository.java
@@ -14,6 +14,8 @@ import com.roshka.modelo.Postulante;
 
 public interface PostulanteRepository extends JpaRepository<Postulante,Long> {
 
+    public Postulante findByNroDocument(String ci);
+
     @Query("select p from Postulante p join p.estudios e on e.institucion.nombre LIKE %?1%")
 	public List<Postulante> findByInstitucionEstudio(String institucion);
     
diff --git a/curriculumsearch/src/main/java/com/roshka/repositorio/PostulanteTecnologiaRepository.java b/curriculumsearch/src/main/java/com/roshka/repositorio/PostulanteTecnologiaRepository.java
index 8a295b0..012f485 100644
--- a/curriculumsearch/src/main/java/com/roshka/repositorio/PostulanteTecnologiaRepository.java
+++ b/curriculumsearch/src/main/java/com/roshka/repositorio/PostulanteTecnologiaRepository.java
@@ -1,12 +1,15 @@
 package com.roshka.repositorio;
 
+import com.roshka.modelo.Postulante;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import com.roshka.modelo.PostulanteTecnologia;
 
-public interface PostulanteTecnologiaRepository extends JpaRepository<PostulanteTecnologia,Long>{
+import java.util.List;
 
+public interface PostulanteTecnologiaRepository extends JpaRepository<PostulanteTecnologia,Long>{
 
+    public List<PostulanteTecnologia> findByPostulante(Postulante postulante);
 	
 	
 }
diff --git a/curriculumsearch/src/main/resources/static/main.js b/curriculumsearch/src/main/resources/static/main.js
index 2e9fbfa..808eef0 100644
--- a/curriculumsearch/src/main/resources/static/main.js
+++ b/curriculumsearch/src/main/resources/static/main.js
@@ -1,12 +1,20 @@
 var cont_experiencia = 0;
 let cont_estudios = 0;
 let cont_tecnologia = 0;
+
 let cont_cargo = 0;
 const experiencias = [];
 const estudios = [];
 const tecnologias = [];
+let noValidateFlag = false;
+
 const postulaciones = [];
 
+var cont_referencias=0 ;
+const referencias= [];
+
+
+
 const formValidator = function () {
     'use strict'
 
@@ -22,6 +30,7 @@ const formValidator = function () {
                 if (!form.checkValidity()) {
                     event.preventDefault()
                     event.stopPropagation()
+                    noValidateFlag = true;
                 }
 
                 form.classList.add('was-validated')
@@ -194,6 +203,8 @@ function serializeJSON (form) {
     pairs["estudios"] = estudios.filter(est => est)//eliminacion de nulos
     pairs["tecnologias"] = tecnologias.filter(tec => tec)//eliminacion de nulos
     pairs["postulaciones"] = postulaciones.filter(car => car)//eliminacion de nulos
+    pairs["referencias"] = referencias.filter(tec => tec)
+
     
     // Return the JSON string
     return JSON.stringify(pairs, null, 2);
@@ -228,15 +239,18 @@ form.addEventListener("submit",(evt)=>{
     //     evt.stopPropagation()
     // }
     // form.classList.add('was-validated')
-    postData('postulante', serializeJSON(form))
-    .then(response => {
-        if(response.status==200 || response.status==302){
-            location.replace(response.url);
-        }else{
-            console.log(response.text().then(value => console.log(value)))
-        }
-    });
-    evt.preventDefault();
+    if(!noValidateFlag){
+        postData('postulante', serializeJSON(form))
+            .then(response => {
+                if(response.status==200 || response.status==302){
+                    location.replace(response.url);
+                }else{
+                    console.log(response.text().then(value => console.log(value)))
+                }
+            });
+        evt.preventDefault();
+    }
+    noValidateFlag = false
 } );
 
 document.querySelector("#btn-new-tech").addEventListener('click',()=>{document.querySelector("#tecnologia-nombre").classList.remove('d-none')})
@@ -321,6 +335,10 @@ function agregarFieldEstudio(){
 
 }
 
+
+
+
+
 function eliminarEstudio(event) {
     //eliminar del array
     estudios[event.target.parentElement.id.split("-")[1]]=null
@@ -361,6 +379,15 @@ function agregarFieldCargo(){
         pairs[name] = value
     }
     console.log(pairs)
+    for(let i=0;i<cont_cargo;i++){
+        if(postulaciones[i]!==null){
+            if(postulaciones[i]["id"]===pairs["cargo-id"]){
+                alert("Ya has agregado ese cargo!")
+                cont_cargo--;
+                return;
+            }
+        }
+    }
     postulaciones[cont_cargo]={}
     postulaciones[cont_cargo]["id"]=pairs["cargo-id"]
     //postulaciones[cont_cargo]["cargo"]=pairs["cargo-id"]=="-1"?{nombre: pairs["cargo-nombre"]}:{id: pairs["cargo-id"],nombre:document.querySelector('[name=cargo-id] > option[value="'+pairs["cargo-id"]+'"]').innerHTML}
@@ -369,7 +396,6 @@ function agregarFieldCargo(){
     //imprimir lista actualizada
     const div = document.querySelector("#cargos")
     const div1 = document.createElement('div');
-    console.log(postulaciones[0])
 
     let content1='<ul>'
     for (let index = 0; index < postulaciones.length; index++) {
@@ -424,3 +450,82 @@ function listarCiudades(depId){
     
     
 }
+
+
+
+function agregarFieldReferencia(event){
+    //recoger del form
+    const pairs = {};
+    const formexp = document.querySelector("[name=referencia-form]");
+    const formData = new FormData(formexp);
+    const referenciaPersonal = [{},{},{}];
+    let pos_rec;
+    let returnFlag = false;
+
+    let requiredValues = ["nombre", "relacion", "telefono"]
+
+    formData.forEach((value, key)=>{
+        if(requiredValues.includes(key)
+        && value==="" && returnFlag == false){
+            console.log(key, value)
+            returnFlag = true;
+        }
+    });
+
+    if(returnFlag===true){
+        let message = "Rellene "
+        for(let i=0;i<requiredValues.length;i++){
+            message+=", "+requiredValues[i];
+        }
+        message += " como minimo."
+        alert(message);
+        return;
+    }
+
+    for (const [name, value] of formData){
+        pos_rec = name.split("-");//rec-nombre-index
+        if (pos_rec.length > 1) {
+            referenciaPersonal[pos_rec[2]][pos_rec[1]] = value
+        }
+        else{
+            pairs[name] = value
+        }
+
+    }
+    pairs["referenciaPersonal"] = referenciaPersonal.filter(rec => rec.nombre);
+    referencias[cont_referencias] = pairs;
+    formexp.reset();
+    //imprimir lista actualizada
+    const div = document.querySelector("#referencia")
+    const div1 = document.createElement('div');
+    let content='<ul>'
+    for (let index = 0; index < referencias.length; index++) {
+        const exp = referencias[index];
+        if(exp==null) continue;
+        content += `
+        <li id="exp-${index}">        
+            ${exp.nombre}
+            <button type="button" onclick="eliminarReferencia(event)"> <span class="glyphicon glyphicon-trash"></span> Tras</button>
+        </li>
+        
+        `
+    }
+    content += "</ul>" 
+    div1.innerHTML = content
+    div.innerHTML = '';
+    div.appendChild(div1);
+    cont_referencias++;
+}
+
+/*----------------------------------------------------------------- */
+function eliminarReferencia(event) {
+    //eliminar del array
+    referencias[event.target.parentElement.id.split("-")[1]]=null
+    //eliminar en html
+    event.target.parentElement.remove()
+}
+/*----------------------------------------------------------------- */
+
+
+
+
diff --git a/curriculumsearch/src/main/webapp/jsp/postulante-form.jsp b/curriculumsearch/src/main/webapp/jsp/postulante-form.jsp
index 2770e58..649ba5d 100644
--- a/curriculumsearch/src/main/webapp/jsp/postulante-form.jsp
+++ b/curriculumsearch/src/main/webapp/jsp/postulante-form.jsp
@@ -234,11 +234,11 @@
                         
                                   <div class="inputs col-md-6"> <label for="nivelIngles" class="form-label"> Nivel de ingles</label> 
                                     <select name="nivelIngles" id="nivelIngles" class="bg-light">
-                                    <option value="1" selected>1</option>
-                                    <option value="2" >2</option>
-                                    <option value="3" >3</option>
-                                    <option value="4" >4</option>
-                                    <option value="5" >5</option>
+                                    <option value="1" selected>Ingles muy basico</option>
+                                    <option value="2" >Comprendo algunas cosas y puedo leer con la ayuda del traductor</option>
+                                    <option value="3" >Puedo leer tranquilamente</option>
+                                    <option value="4" >Puedo escribir documentacion</option>
+                                    <option value="5" >Puedo escribir y hablar tranquilamente</option>
                                     </select> 
                                   </div>
                                 
@@ -288,14 +288,20 @@
                                   <div class=" inputs d-flex justify-content-between align-items-center experience"><span class="border px-3 p-1 add-experience"  data-toggle="modal" data-target="#tecnologiaForm"><i class="fa fa-plus"></i>&nbsp;Agregar Tecnologia</span></div><br>   
                                 </div>
                                 
+                                
                                 <div class="mt-3 gap-2 d-flex justify-content-between" id="tecnologias"> 
                                 </div>
-                              
+
+                                <div class="inputs p-3 py-5">
+                                  <div class=" inputs d-flex justify-content-between align-items-center experience"><span class="border px-3 p-1 add-experience"  data-toggle="modal" data-target="#referenciaForm"><i class="fa fa-plus"></i>&nbsp;Referencias Personales</span></div><br>   
+                                </div>
+                                <div class="mt-3 gap-2 d-flex justify-content-between" id="referencia"> 
+                                </div>
                       
                         
                                 
                                 <div class="mt-3 gap-2 d-flex justify-content-end">
-                                  <button class="px-3 btn btn-sm btn-outline-primary">Cancelar</button> 
+                                  <a class="px-3 btn btn-sm btn-outline-primary" href="/postulante">Cancelar</a>
                                   <button class="px-3 btn btn-sm btn-primary" type="submit">Guardar</button>
                                 </div>
                               </div>
@@ -348,22 +354,22 @@
                 <form name="experiencia-form" class="needs-validation" novalidate>
 
                         <div class="inputs">
-                            <label for="institucion" class="inputs form-label">Institucion</label>
-                            <input type="text" class="inputs form-control  " name="institucion" id="institucion" required>
+                            <label for="institucionExperiencia" class="inputs form-label">Institucion</label>
+                            <input type="text" class="inputs form-control  " name="institucion" id="institucionExperiencia" required>
                         </div>
                         <div class="inputs">
-                            <label for="fechaDesde" class="form-label">Fecha Desde</label>
-                            <input type="date" class="form-control  " name="fechaDesde" id="fechaDesde" required>
+                            <label for="fechaDesdeExperiencia" class="form-label">Fecha Desde</label>
+                            <input type="date" class="form-control" name="fechaDesde" id="fechaDesdeExperiencia" required>
                         </div>
                          
                         <div class="inputs">
-                            <label for="fechaHasta" class="form-label">Fecha Hasta</label>
-                            <input type="date" class="form-control  " name="fechaHasta" id="fechaHasta" >
+                            <label for="fechaHastaExperiencia" class="form-label">Fecha Hasta</label>
+                            <input type="date" class="form-control" name="fechaHasta" id="fechaHastaExperiencia" >
                         </div>
                         
                         <div class="inputs">
                             <label for="cargo" class="form-label">Cargo</label>
-                            <input type="text" class="form-control  " name="cargo" id="cargo" required>
+                            <input type="text" class="form-control " name="cargo" id="cargo" required>
                         </div>
 
                         <div class="inputs">
@@ -431,7 +437,7 @@
                   
                   <input type="text" class="form-control d-none" name="tecnologia-nombre" id="tecnologia-nombre" >
                   <label for="nivel" class="form-label">Nivel</label>
-                  <input type="number" class="form-control" name="nivel" id="nivel" required>
+                  <input type="range" class="form-range" name="nivel" id="nivel" min="1" max="5" required>
               </form>
           </div>
           <div class="modal-footer">
@@ -470,8 +476,8 @@
 <%--                <label for="tipoDeEstudio" class="form-label">Tipo De Estudio</label>--%>
 <%--                <input type="text" class="form-control  " name="tipoDeEstudio" id="tipoDeEstudio">--%>
                 <div class="form-group">
-                    <label for="institucion" class="form-label">Institucion</label>
-                    <input type="text" class="form-control" name="institucion" id="institucion" required>
+                    <label for="institucionEstudio" class="form-label">Institucion</label>
+                    <input type="text" class="form-control" name="institucion" id="institucionEstudio" required>
                 </div>
                 <div class="form-group">
                     <label for="temaDeEstudio" class="form-label">Carrera/Bachiller/Tema de Curso</label>
@@ -487,12 +493,12 @@
                       </select>
                   </div>
                 <div class="form-group">
-                    <label for="fechaDesde" class="form-label">Fecha Desde</label>
-                    <input type="date" class="form-control  " name="fechaDesde" id="fechaDesde" required>
+                    <label for="fechaDesdeEstudio" class="form-label">Fecha Desde</label>
+                    <input type="date" class="form-control  " name="fechaDesde" id="fechaDesdeEstudio" required>
                 </div>
                 <div class="form-group">
-                    <label for="fechaHasta" class="form-label">Fecha Hasta</label>
-                    <input type="date" class="form-control  " name="fechaHasta" id="fechaHasta" >
+                    <label for="fechaHastaEstudio" class="form-label">Fecha Hasta</label>
+                    <input type="date" class="form-control  " name="fechaHasta" id="fechaHastaEstudio" >
                 </div>
 
 
@@ -507,6 +513,44 @@
   </div>
     <meta name="_csrf" content="${_csrf.token}"/>
     <meta name="_csrf_header" content="${_csrf.headerName}"/>
+    <!--Modal de referencias-->
+       <div class="modal fade" id="referenciaForm" tabindex="-1" role="dialog" aria-labelledby="referenciaForm" aria-hidden="true">
+        <div class="modal-dialog" role="document">
+          <div class="modal-content">
+            <div class="modal-header">
+              <h5 class="modal-title" id="exampleModalLabel">Referencias Personales</h5>
+              <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+                <span aria-hidden="true">&times;</span>
+              </button>
+            </div>
+            <div class="modal-body">
+              <form name="referencia-form" class="needs-validation" novalidate>
+                <div class="form-group">
+                    <label for="nombre" class="form-label">Nombre</label>
+                    <input type="text" class="form-control" name="nombre" id="nombre" required>
+                </div>
+                <div class="form-group">
+                    <label for="relacion" class="form-label">Relacion</label>
+                    <input type="text" class="form-control" name="relacion" id="relacion" required>
+                </div>
+
+                <div class="form-group">
+                  <label for="telefono" class="form-label">Telefono</label>
+                  <input type="number" class="form-control" name="telefono" id="telefono" required>
+              </div>
+                 
+                
+
+
+            </form>
+        </div>
+        <div class="modal-footer">
+          <button type="button" class="btn btn-secondary" data-dismiss="modal">Cerrar</button>
+          <button type="button" class="btn btn-primary" onclick="agregarFieldReferencia()" data-dismiss="modal">Agregar</button>
+        </div>
+      </div>
+    </div>
+      </div>
 
 
     <!-- Optional JavaScript; choose one of the two! -->
@@ -516,7 +560,38 @@
     <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
     <script>
       var ciudades = ${ciudades};
-        
+      (function(){
+          var today = new Date();
+          var dd = today.getDate();
+          var mm = today.getMonth() + 1; //January is 0!
+          var yyyy = today.getFullYear();
+
+          if (dd < 10) {
+              dd = '0' + dd;
+          }
+
+          if (mm < 10) {
+              mm = '0' + mm;
+          }
+
+          today = yyyy + '-' + mm + '-' + dd;
+
+
+          let fechaDesdeEstudio = document.querySelector("#fechaDesdeEstudio");
+          let fechaDesdeExperiencia = document.querySelector("#fechaDesdeExperiencia");
+          let fechaHastaEstudio = document.querySelector("#fechaHastaEstudio");
+          let fechaHastaExperiencia = document.querySelector("#fechaHastaExperiencia");
+
+          fechaDesdeEstudio.setAttribute("max", today);
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