00485nam a2200181Ia 4500003000400000008004100004020001800045082001700063100001400080245006400094260003900158300001000197650002000207650002400227650001300251650002000264700001900284OSt170901s1999    xx            000 0 und d  a9788127267469  a300.72bR22R  aRay, G.L. 0aResearch Methods in Social Sciences and Extension Education  aLudhianabKalyani Publishersc1999  a330p.  aSocial sciences  aExtension Education  aResearch  aSocial Sciences  aMondal, Sagar.