Advocacy for Human Rights in the Americas, Transnational Institute, and Global Drug Policy Observatory : The WHO's First-Ever Critical Review of Cannabis : A Mixture of Obvious Recommendations Deserving Support and Dubious Methods and Outcomes Requiring Scrutiny, 2019. (https://www.tni.org/files/publication-downloads/who-cannabis-wola_tni_gdpo-march_2019.pdf) (最終閲覧日: 2019年10月31日)
Global Commission on Drug Policy : Classification of Psychoactive Substances : When Science was Left Behind, Report 2019 (https://www.globalcommissionondrugs.org/reports/classification-psychoactive-substances) (最終閲覧日: 2019年10月31日)
International Drug Policy Consortium : Aide-mémoire on the WHO-ECDD recommendations with regards to cannabis produced by IDPC, 2019. (http://cndblog.org/2019/09/cnd-intersessional-meeting-23-september-2019/) (最終閲覧日: 2019年10月31日)