00297nam a2200121Ia 450000500170000000800410001704100080005808200150006610000140008124500280009526000430012330000090016620260720174546.0260720s2005 xx 000 0 und d aeng a370.1 DASP aDash, B N aPrinciples of education aNew DelhibNeelkamal Publicationc2005 a308p