1. Ainsworth, B. (2003, March 22). Letter to Herbert Schaepe. Retrieved from http://www.drugscope.org.uk/news_item.asp?a=1&intID=981, 20 July 2004.
2. A modern introduction to international law;Akehurst,1982
3. The United Nations drug conventions regime and policy reform;Andenas,2003
4. Annan, K. (2005, May/June). “In Larger Freedom”: Decision Time at the UN. Foreign Affairs.
5. When policies collide: Market reform, market prohibition, and the narcotization of the Mexican economy;Andreas,1999