Karp, Aaron. 2018. “Estimating Global Civilian-Held Firearms Numbers,” p. 4. Small Arms Survey, Graduate Institute of International and Development Studies. http://www.smallarmssurvey.org/fileadmin/docs/T-Briefing-Papers/SAS-BP-Civilian-Firearms-Numbers.pdf; Small Arms Survey. 2018. “Global Firearms Holding Dynamic Map.” Small Arms Survey, Graduate Institute of International and Development Studies. http://www.smallarmssurvey.org/weapons-and-markets/tools/global-firearms-holdings.html.
