00466nam a2200145Ia 450000500170000000800410001704100080005808200160006610000260008224500360010826000450014430000090018999900190019895201030021720260720174557.0260720s2005    xx            000 0 und d  aeng  a311.22 PRAM  aPrakash, Ravi9268468  aMethods of educational research  aNew DelhibCommonwealth Publishersc2005  a379p  c242546d242546  001040708BEDaALbALd2026-07-20l0o311.22 PRAMpBED00938r2026-07-20 17:45:57w2026-07-20yBK