https://www.youtube.com/watch?v=2tzmSr19evg

https://www.youtube.com/watch?v=NxjHtvJkFI8

http://mx.ivoox.com/es/gran-carrera-audios-mp3_rf_13178091_1.html

https://prezi.com/5bjrqh-gbg8r/edit/#0
https://prezi.com/0lrqrvcy1ftj/edit/#1_24309637

http://www.slideshare.net/DaniaRamirezMandujan/plan-de-estudio-66223654
http://www.slideshare.net/DaniaRamirezMandujan/autoestima-relacionado-con-el-desempeo-escolar

https://docs.zoho.com/show/open/8aban59891987b61e4fffbfd8c355be58ba48/slide/2894212000000004082
https://docs.zoho.com/writer/open/8abanc63506b32333409f8be2e0d3c6664fa4
https://docs.zoho.com/sheet/ropen.do?rid=8aban87090918462b4c2aaf902b298626f3bb

http://es.calameo.com/read/00492203377463d34ab7c
http://es.calameo.com/read/0049220337da953a9f868