Sen-Ngam, Kaitsara, Jamian Kulvijit, and Luckana Kongsang. 2012. “Health Status and Factors Related to Health Status of Children Attending at the Early Childhood Development Center”. Journal of Research in Nursing-Midwifery and Health Sciences 32 (1):11-26. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/1242.