00631nam a22002177a 4500 OSt 250403b |||||||| |||| 00| 0 eng d 8127214639 300.721 R26R Ray, G. L. Research Methods in Social Sciences and Extension Education / by G. L. Ray and Sagar Mondal 2nd revised and enlarged ed. .- Ludhiana : Kalyani Publishers , 2004 321p. Social Sciences Social Sciences Extension Education Research Methods Mondal, Sagar. ddc DB 47809 47809 0 0 ddc 0 0 RAU RAU 2025-04-03 Donated by Dr. D. K. Sinha, Agri. Economics 250.00 0 300.721 R26R 83090 2025-04-03 0000-00-00 DB Gift