7Jakobeit Hartzenberg and Charalambides. Overlapping Membership in COMESA, EAC, SACU and SADC : Trade Policy Options for the Region and for EPA Negotiations [R]. Trade Programme, Div. 41 Economic Development and Employment, Abt. 45 Agriculture, Fisheries and Food, 2005, available at http ://www2. gtz. de/dokumente/bib/06 - 1000. pdf, last visited on 2010- 11-26, ( Executive Summary) I - XXIII.
8Scott Flatto. Too Much of A Good Thing?: Reassessing the Proliferation of African Regional Trade Agreements [ J ]. Suffolk Transnational Law Review, 2007, (30) : 407 -432.
9Philippe De Lombaerde and Luis J. Garay. Preferential Rules of Origin and the Multilateral Trading System : Pro-Development Policy Options [J]. Intereconomics, 2007, 42(5): 261 -262.
10Oliver Cadot. Jaime De Melo and Alberto Portugal-Perez. Rules of Origin for Preferential Trading Arrangements : Implications for the ASEAN Free Trade Area of EU and US Experience [ R]. World Bank Policy Research Working Paper 4016, 2006.15 -16.