00519nam a2200181 a 4500008004100000020001500041100001900056245006900075250001200144260004000156300002500196504004100221500002000262650002800282003000100310005001700311040000900328                                          a08522647711 aKothari, C. R.10aResearch methodology :bmethods and techniques /c C. R. Kothari  a2nd ed.  aNew Delhi :bWiley Eastern ,c1990   axii, 468 p. ;c22cm.  aInlcudes bibliographical references.  aIncludes Index.  aResearch xmethodology.20230123133257.0  cNUST