000 00277nam a2200109 4500
082 _a630.715 RAY-R
100 _aRay G.L.
245 _aResearch Methods in Social Sciences and Extension Education
260 _aLudhiana
_bKalyani
_c2016
300 _a330
942 _2ddc
_cBK
_07
999 _c127943
_d127943