00337nam a22001097a 4500082002100000100001900021245007700040260004200117300001900159650002500178650002400203  a650.072  bIND/F  aInderpal Singh  aResearch methodology and statistical methods/cInderpal Singh...[et al.]  aLudhiana:bKalyani publishers,c2007.  a719p. ;b25cm.  aResearch Methodology  aStatistical Methods