Iamchareon, T., Kunthachumpoo, N., Wilert, S. and Kalsung, A. (2020) “Effects of breastfeeding promotion program on efficiency of breastfeeding and rate of exclusive breastfeeding for 6 months in primiparous mothers”, Journal of Medicine and Health Sciences, 27(2), pp. 1–17. available at: https://he01.tci-thaijo.org/index.php/jmhs/article/view/244759 (accessed: 19 September 2026).