Suntharasaj , Thitima, Roengsak Leetanaporn, Somsri Promsalee, and Verapol Chandeying. “Indicators of AIDS Prevention Among Vocational Students in Songkhla”. Thai Journal of Obstetrics and Gynaecology 6, no. 2 (July 1, 1994): 107–116. accessed September 28, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/257780.