1. ‘The Effects of the EEC and EFTA on European Trade: A Temporal Cross‐section Analysis’;Aitken N. D.;American Economic Review,1973
2. Asian Development Bank (ADB)(2002) ‘Preferential Trade Agreements in Asia and the Pacific’ Asian Development Outlook 2002 157–96.
3. Austria M. S.(2003) ‘East Asian Regional Cooperation: Approaches and Processes’ PIDS Discussion Paper Series No. 2003‐02 (Philippines Institute for Development Studies).
4. Baier S.andJ.Bergstrand(2003) ‘Endogenous Free Trade Agreements and the Gravity Equation’ manuscript.