Koedplangtong, Mongkol, and Bussaranya Puttanapitak. “The Efficacy of Antenatal Perineal Massage in Reducing Postpartum Anal Incontinence: A randomized controlled trial”. Thai Journal of Obstetrics and Gynaecology 33, no. 3 (May 28, 2025): 257–265. accessed September 24, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/271314.