Surinchompoo, D. . (2023). Roles of Administrators in Early Childhood Centers Towards Early Childhood’s Holistic Development Based on 3D Knowledge Foundation for Early Childhood Development. KKU Research Journal (Graduate Studies) Humanities and Social Sciences, 11(1), 22–33. retrieved from https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/260836