00311nam a22001217a 4500020001800000082001500018100001800033245004800051250001900099260003800118300000800156650002500164  a81-7326-036-3  a001.42 KOT  aKothari, C.R.  aResearch Methodology Methods and Techniques  aSecond Edition  aHyderabadbVishwa Prakashanc1985  a468  aResearch Methodology