Poramanusith, Utai. “Development of system for prevention and management of early postpartum hemorrhage following vaginal delivery at Pakchong Nana Hospital”. Maharat Nakhon Ratchasima Hospital Journal 41, no. 1 (July 9, 2024): 13–20. accessed April 4, 2025. https://he04.tci-thaijo.org/index.php/MNRHJ/article/view/1326.