ประสิทธิเมตต์ ถ. (2019) “Thai Early Child Development in Regional Health Service 4”, Journal of Preventive Medicine Association of Thailand, 5(2), pp. 173–187. Available at: https://he01.tci-thaijo.org/index.php/JPMAT/article/view/165698 (Accessed: 4 May 2024).