1. Amatangelo, G. (2001). A First Step Toward Reform of the Drug Certification Process. Cross Currents: Washington and the Americas, 10, 2. Retrieved 27th July 2004 from http://www.wola.org/publications/Enlace2001/2_certification_reform.PDF.
2. Beers, R. (2001). Counternarcotics certification. Testimony of Assistant Secretary for International Narcotics and Law Enforcement Affairs before the Western Hemisphere, Peace Corps, and Narcotics Subcommittee of the Senate Foreign Relations Committee, Washington DC, March 1st 2001. Retrieved 15 September 2004 from http://www.state.gov/g/inl/rls/rm/2001/jan_apr/1734.htm.
3. Certification meets NAFTA: more schizophrenia in the misguided war;Bewley-Taylor;International Journal of Drug Policy,1998
4. Global Business Regulation;Braithwaite,2000
5. Bureau of International Narcotics and Law Enforcement Affairs, United States State Department. (2004). Fact sheet: The drug certification process updated 12 February 2004. Retrieved 25th June 2004 from http://www.usa.or.th/services/docs/reports/drugc.htm.