สุขยิ่ง ว, พุมดวง ศ, ธิติมาพงษ์ เ. The Effects of Natural Pushing Together with a Preliminary Controlled Breathing of Yoga on Duration of the Second Stage of Labor and Postpartum Fatigue in Primiparous Women. Pnu Sci J [Internet]. 2018 Jan. 15 [cited 2024 Apr. 29];10(1):1-12. Available from: https://li01.tci-thaijo.org/index.php/pnujr/article/view/109332