Harm Reduction Journal: Cannabis as a substitute for alcohol and other drugs - PDF User shallah, in the Marijuana: news, laws, advocacy, and discussion subreddit, 10 Feb 2014
Harm Reduction Journal: Cannabis as a substitute for alcohol and other drugs User shallah, in the Cannabis news subreddit, 01 Jun 2013
Harm Reduction Journal | Cannabis as a substitute for alcohol and other drugs User shallah, in the Legalize It! subreddit, 09 Aug 2011
Harm Reduction Journal | Cannabis as a substitute for alcohol and other drugs User shallah, in the Marijuana: news, laws, advocacy, and discussion subreddit, 18 Jul 2010