Tongngern, sutat, Sirirat Choosakoonkriang, and Supachai Supalaknari. 2020. “Analysis of demographic data of the offenders and case data of narcotics cases in Ban Pong district in 2015”. Rajamangala University of Technology Tawan-ok Social Science Journal 9 (1):123-33. https://so05.tci-thaijo.org/index.php/SocialJournal2rmutto/article/view/242186.