German Madrigal P. matemandtics@identi.ca

Bogotá, Colombia

Docente de Matemáticas, Física e Informática.

Catherine Valencia at 2012-08-22T02:06:07+00:00
Clase cohorte 7 gestion de la informacion
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Catherine Valencia at 2012-08-22T01:54:52+00:00
:)- hola!!!
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