7Bergatrand,J.H.(1983), "Measurement and Determinants of Intra-industry International Trade", in Tharakan, P.K.M.(ed): Intra-industry Trade, Amsterdam, North Holland, 48-60.
8Greenaway,A. and Milner, C.R.(1984), "On the Measurement of Intra-industry Trade in the U.K.", European Economic Review,25-35.
9Grubel,H.G. and Lloyd,P.J.(1975),"Intra-industry Trade: The Theory and Measurement of International Trade in Differentiated Products",Macmillan, 62-80.
10Krugman,P. (1981), "Intra-industry Specialization and Gains From Trade",Journal of Political Economy, 81-85.