1. Trading Blocs: Alternative Approaches to analyzing Preferential Trade Agreements;Bhagwati,1999
2. International Trade;Breton,1997
3. Multilateral trade negotiations and preferential trading arrangements;Deardorff,1994
4. Devlin, Robert, Ffrench-Davis, Ricardo (1998). Towards an Evaluation of Regional Integration in Latin America in the 1990s. Inter-American Development Bank (IDB), The Institute for the Integration of Latin American and the Caribbean (INTAL) working papers, Paper vol. 2, 19–22.
5. Economic integration and development has regional delivered for developing countries;Kreinin,2002