รักศิลป์ม. (2018). Knowledge and attitude about sex education of the freshman of Public Health Program in Community Health, Faculty of Public Health, Ubon Ratchathani Rajabhat University. UBRU Journal for Public Health Research, 7(1), 82-90. Retrieved from https://he02.tci-thaijo.org/index.php/ubruphjou/article/view/162788