00578nam a22001937a 4500003000400000008004100004020001500045082001800060100001500078245009800093250003300191260004600224300001000270650002000280650002000300650002400320650002100344700001900365OSt250403b        |||||||| |||| 00| 0 eng d  a8127214639  a300.721bR26R  aRay, G. L.  aResearch Methods in Social Sciences and Extension Education / cby G. L. Ray and Sagar Mondal  a2nd revised and enlarged ed.  a.- Ludhianab: Kalyani Publishersc, 2004  a321p.  aSocial Sciences  aSocial Sciences  aExtension Education  aResearch Methods  aMondal, Sagar.