Sinlatamkij , Chanokpron, and Rachada Phuangprasonka. 2022. “Factors Related to Perceived Self-Efficacy in Coping with Labor Pain in Primiparous Pregnant Women”. Journal of The Royal Thai Army Nurses 23 (2):99-108. https://he01.tci-thaijo.org/index.php/JRTAN/article/view/250149.