1. Australian/New Zealand Standard Safety of Toys – Part 1: Safety Aspects related to Mechanical and Physical Properties (Safety of Toys ASNZS ISO 8124.1:2019), published 30.05.2019.
2. Association of Firearm and Tool Mark Examiners Glossary, 2013, Version 6.120414.
3. Forensic Science;Andrew Jackson,2011
4. D. Crandell, R. Watson, Firearm Trigger Assembly, U.S. Patent Application Publication, 2006, viewed 30 May 2020 〈https://patentimages.storage.googleapis.com/6b/7a/74/04ece0413ed615/US20060048427A1.pdf〉.
5. Handbook of Firearm and Ballistics, Examining and Interpreting Forensic Evidence;Heard,2008