Polkhacha, Witchanee. “The Development of the Breastfeeding Model of the Postpartum Mothers in Selaphum Hospital Roi-Et Province”. Journal of Faculty of Humanities and Social Sciences Thepsatri Rajabhat University 13, no. 2 (August 30, 2022): 125–138. accessed December 6, 2025. https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/254426.