Phutthakham, Panaddar, and Tanawan Samleerat. “Sexual Behavior and Attitudes Regarding Sexual Transmitted Disease Among Foreigners in Chiang Mai City Chiang Mai Province”. Journal of Associated Medical Sciences 50, no. 2 (May 2, 2017): 159. Accessed May 18, 2024. https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/72152.