1. American Chemical Society. National Chemistry Week 2016: Solving Mysteries through Chemistry.http://www.acs.org/content/acs/en/education/outreach/ncw/about.html(accessed Sep 2016) .
2. Scientific Working Group for Materials Analysis. http://www.swgmat.org/(accessed Sep 2016) .
3. ASTM International’s forensic science standards. https://www.astm.org/Standards/forensic-science-standards.html(accessed Sep 2016) .
4. ACS Division of Chemical Health and Safety, Cannabis Subdivision. http://dchas.org/cann/(accessed Sep 2016) .