7Balassa, B., 1965, Trade Liberalization and Revealed Comparative Advantage, Manchester School, 33, 99- 123.
8Bowden, R., 1983, The Conceptual Basis of Empirical Studies of Trade in Manufactured Commodities: A Constructive Critique, Manchester School, 51, 209-234.
9Deardorff, A., 1984, "Testing Trade Theories and Predicting Trade Flows", in Handbook of International Economics, Vol. I (Ed.) R. Jones and P. Kenen, pp.467- 517,North Holland, Amsterdam.
10Hoekman, B. and Kosteeki, M. 1995, The Political Economy of the World Trading System - From GATT to GATS, Oxford University Press.