00000nam a2200000 a 4500 20251203090510.0 300.72 HAN Hans Raj Theory and practice in social research 4th ed Delhi Surjeet 1987 xi, 404 p. 23 cm. PB Social science research Eng PUL 12274 W 16246 W 12275 C 68903 W 9771 9771 2 0 0 0 PU PU 1998-04-08 0 300.72 HAN 12274 BK 2 0 0 0 PU PU 1998-04-08 0 300.72 HAN 16246 BK 2 0 0 0 PU PU 1998-06-25 0 300.72 HAN 12275 BK 2 0 0 0 PU PU 2000-08-23 0 300.72 HAN 68903 BK