1. Van Hout MC Bergin M Foley M Rich E Rapca AI Harris R Norman I 2014 http://codemisused.org/uploads/files/Van_Hout_et_al_Scoping_Report_23-03-2015.pdf
2. Nielsen S Cameron J Pahoki S 2010 http://atdc.org.au/wp-content/uploads/2011/02/OTC_CODEINE_REPORT.pdf
3. Australian Medicines Handbook Pty Ltd 2016
4. MIMS Australia 1996
5. McNiece , K https://www.tga.gov.au/media-release/update-proposal-rescheduling-codeine-products