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2. Donges, Juergen B. and Riedel, James. (1977) “The Expansion of Manufactured Exports in Developing Countries: An Empirical Assessment of Supply and Demand Issues” Weltwirtschaftliches Archiv, Vol. 113, pp. 58 - 85.
3. Gelb, Alan and Condon, Tim.(1985) “Notes on Simultaneous Equations Bias in the Measurement of Structural Trade Elasticities”. Washington D.C.: World Bank. Unpublished manuscript.
4. Goldstein, Morris and Khan, Mohsin S. (1978) “The Supply and Demand for Exports: A Simultaneous Approach” Review of Economics and Statistics, pp. 111 - 25.
5. Goldstein, Morris and Khan, Mohsin S.(1983) “Income and Price Effects in Foreign Trade”. In Handbook of International Economics. . Amsterdam : North Holland. Chapter 20