Khitthiphong, Viengsavanh, Nate Hongkailert, and Jutatip Sillabutra Sillabutra. “Preventive Behavior of Sexually Transmitted Diseases Among High School Students in Vientiane, Lao P.D.R”. Journal of Public Health and Development 12, no. 3 (December 30, 2014): 65–77. Accessed May 7, 2024. https://he01.tci-thaijo.org/index.php/AIHD-MU/article/view/27748.