00000nam a2200000 a 4500 20251202164126.0 370.072 SUK Sukhia, S.P Mehrotra, P.V Mehrotra, R.N Elements of educational research 3rd rev.ed. New Delhi Allied 1974 xvi,390 p. 22cm. PB Education research ENG _ 9856 C 9857 C 367 367 0 0 0 0 PU PU 1998-04-08 25.00 0 370.072 SUK 9856 BK 0 0 0 0 PU PU 2000-04-03 0 370.072 SUK 9857 BK