00349nam a2200145Ia 450000500170000000800460001703700140006304000200007704100130009708400210011024500450013125000080017626000090018430000100019320250508160906.0008  250505s9999    xx            000 0 hin d  aReference  aFEDLbengcFEDL  ahin2eng  a370.1, SAFqFEDL 0aShiksha ke siddhant aur shikshan vidhiya  a4th  c1975  a344p.