- United Nations Office on Drugs and Crime, World Drug Report 2012, Vienna, June 2012. http://unodc.org
- Louisa Degenhardt and Wayne Hall, ‘Extent of illicit drug use and dependence, and their contribution to the global burden of disease’ in The Lancet, Vol 379, Issue 9810, London, January 2012.
- United Nations Office on Drugs and Crime, World Drug Report 2011, Vienna, June 2011. http://unodc.org
- Transform, The Alternative World Drug Report, Bristol, June 2012. http://www.tdpf.org.uk/
- http://icasualties.org/
- Counterpunch, citing UNAMA estimates. http://www.counterpunch.org/2012/06/08/body-counts/
- Eka Iakobishvili, ‘Cause for Alarm: The incarceration of women for drug offences in Europe and Central Asia and the need for legislative and sentencing reform’, Harm Reduction International, London, March 2012.
- Jeffrey A Miron and Katherine Waldock, ‘Making an Economic case for Legalizing Drugs’, CATO Institute, October 2010. http://www.cato.org/
- David Nutt, Drugs – without the hot air, UIT, Cambridge, England, 2012
- Nigel Inkster, ‘Drugs: a war lost in Afghanistan’, Foreign Policy, 29 May, 2012. http://afpak.foreignpolicy.com/posts/2012/05/29/drugs_a_war_lost_in_afghanistan
- Stephanie Hanson, ‘FARC, ELN: Colombia’s Left-Wing Guerrillas’, Council of Foreign Relations, 19 August 2009. http://www.cfr.org/colombia/farc-eln-colombias-left-wing-guerrillas/p9272