SEGUNDA REVISION CASO DE GRADO
[youtube]http://www.youtube.com/watch?v=9gONsYzgjnw[/youtube]

TERCERA REVISION
[youtube]http://www.youtube.com/watch?v=6SBDu4yz88Q[/youtube]

CUARTA REVISION
[youtube]http://www.youtube.com/watch?v=DpCztBewuvM[/youtube]

ULTIMA REVISION
[youtube]http://www.youtube.com/watch?v=Il478YWsr8Y[/youtube]