3 1 10 CRUZ GUARDADO JAVIER Primary Author OSUNA SANCHEZ MARIA ELENA Additional Author ORTIZ ROBLES JESÚS ISABEL Additional Author mixed material MÉXICO D.F DGEP 2013 19.jpg.jpg CRUZ GUARDADO JAVIER Primary Author OSUNA SANCHEZ MARIA ELENA Additional Author ORTIZ ROBLES JESÚS ISABEL Additional Author ÁVILA GARCIA GUILLERMO Additional Author mixed material MÉXICO D.F DGEP 2013 11.jpg.jpg UN ENFOQUE EN COMPETENCIAS. CRUZ GUARDADO JAVIER Primary Author OSUNA SANCHEZ MARIA ELENA Additional Author ORTIZ ROBLES JESÚS ISABEL Additional Author ÁVILA GARCIA GUILLERMO. Additional Author mixed material MÉXICO D.F ONCE RÍOS EDITORES. 2011 03.jpg.jpg