00557nam a22001817a 4500003000400000008004100004020001800045082001800063100001500081245009800096250004100194260004600235300001000281650002000291650002100311650002400332700001900356OSt250906b        |||||||| |||| 00| 0 eng d  a9788127267469  a300.721bR26R  aRay, G. L.  aResearch Methods in Social Sciences and Extension Education / cby G. L. Ray and Sagar Mondal  a3rd revised and enlarged ed. reprint  a.- Ludhianab: Kalyani Publishersc, 2020  a330p.  aSocial Sciences  aResearch Methods  aExtension Education  aMondal, Sagar.