Raweepakawat T. “Factors Affecting Exclusive Breast-Feeding During the First 6 Months in Regional Health Promotion Center 13 Bangkok”. Journal of The Department of Medical Services, vol. 42, no. 5, Oct. 2017, pp. 42-48, https://he02.tci-thaijo.org/index.php/JDMS/article/view/248756.