Sakamornchai, W., and H. Tangngam. “Prevalence and Factors Influencing Unsuccessful Exclusive Breastfeeding for the First 6 Months”. Journal of Nakornping Hospital, vol. 13, no. 1, June 2022, pp. 143-55, https://he01.tci-thaijo.org/index.php/jnkp/article/view/243387.