Injun, Tanesphol. 2020. “GUIDELINES FOR EARLY CHILDHOOD EDUCATION MANAGEMENT AT THE CHILD DEVELOPMENT CENTER IN ACCORDANCE WITH THE STANDARDS OF THE EARLY CHILDHOOD DEVELOPMENT CENTER 2019”. Journal of MCU Social Science Review 9 (4). Ayutthaya, Thailand:127-36. https://so03.tci-thaijo.org/index.php/jssr/article/view/246976.