เครือเทศน์ ชัยยุทธ. “Active Versus Expectant Management of the Third Stage of Labor at Photharam Hospital”. Journal of Health Science of Thailand 15, no. 5 (September 13, 2021): 753–59. Accessed January 28, 2026. https://www.thaidj.org/index.php/JHS/article/view/10270.