Kritcharoen, Sureeporn, Pranee Pongpaiboon, Kanjanee Phon-In, Warangkana Chatchawet, Preeya Keawpimon, and Supap Maksuwan. “Effectiveness of Continuous Labor Support from Village Health Volunteers on Pain and Duration of Labor Among Primiparous Women”. Journal of Research in Nursing-Midwifery and Health Sciences 39, no. 4 (December 31, 2019): 16–25. Accessed April 20, 2024. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/233269.