4[12]Boland,L.The Methodology of Economic Model Building:Methodology after Samuelson (London:Routledge) 1989.
5[13]Blaug,M.The Methodology of Economics 2nd,edn Cambridge:Cambridge UniversityPress1992.
6[14]Popper,K.The Logic of Scientific Discovery,Hutchinson of London Ninth impression July 1977.
7[15]Glass,J.C andJohnson,W.Economics:progression,stagnation,ordegeneration? an introduction to the methodologica lissues involved in assessing the growth of economic knowledge 1989.
8[16]Simon & Schuster International Group Hutchison,T.W.The Significance and Basic Postulates of Economic Theory.New York:AugustusM.Kelley1938.
9[17]Keynes,J.N.The Scopeand Method of Political Economy p35 4ed (LondonMacmillan) 1917.
10[18]Machlup,F.Essay on Economic Semantics Englewood Cliffs:Prentice -Hall1963.