Pengsaa, Prasit, Vitaya Titapant, Vanchai Vatanasapt, Vorachai Tangvorapongchai, Banchong Udomthavornsuk, and Supannee Sri-amporn. “The Epidemiology Of Uterine Cervix Cancer In Khon Kaen Province 1985-1987. First Result From A Population-Based Cancer Registry”. Thai Journal of Obstetrics and Gynaecology 1, no. 1 (January 1, 1989): 39–46. accessed September 28, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/257918.