Chantapidta, Kittiya. “Prevalence of Cesarean Section According to Robson Classification in Selaphum Hospital”. Srinagarind Medical Journal 40, no. 2 (April 26, 2025): 127–139. accessed December 7, 2025. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/266432.