@incollection{, ABD05F51D02F8ABFCB2E188410EC58DE , author={{Dr. YasirHassan} and {Lahore Business School, the University of Lahore, Pakistan}}, journal={{Global Journal of Management and Business Research}}, journal={{GJMBR}}2249-45880975-585310.34257/GJMBR, address={Cambridge, United States}, publisher={Global Journals Organisation}1233140 } @incollection{b0, , title={{}} , journal={{The Journal of Marketing}} 24 4 , year={Apr., 1960} } @incollection{b1, , title={{}} , journal={{The Journal of Marketing}} 8 3 , year={Jan., 1944} } @incollection{b2, , title={{}} , journal={{The Bell Journal of Economics and Management Science}} 3 1 , year={Spring, 1972} } @incollection{b3, , title={{}} , journal={{Economic and Political Weekly}} 14 3 , year={Jan. 20, 1979} }