00472nam a2200157Ia 4500 140626s9999 xx 000 0 und d Garcia, Arcely. An action research on the effectivity of using the knowledge channel / Arcely Garcia. c2012. 61 : 7, page 260 The Modern Teacher SPED Effectively of media as learning instrument. Knowledge channel. SE 120996 120996 0 0 0 CL CL PER 2014-06-26 0 S0104 2014-06-26 00:00:00 2014-06-26 SE