Chandeying, Verapol. “Clinical Performance Improvement in Obstetrics and Gynecology: RTCOG”. Thai Journal of Obstetrics and Gynaecology 12, no. 4 (October 1, 2000): 255–256. accessed September 28, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/256907.