00288nam a2200121Ia 450000500170000000800410001704100080005808200160006610000140008224500270009626000340012330000090015720260720174811.0260720s2012    xx            000 0 und d  aeng  a370.15 NAYE  aA K Nayak  aEducational Psychology  aDelhibA P H PUBLISHINGc2012  a377p