phitpaew, kanchana, Subruangthong , W., & Rattanasermphong, M. (2024). Problem in Administration of child Development Centers Under The Administrative Organization Sub-District, Singburi Province. Journal of the Association of Researchers, 29(1), 151–166. retrieved from https://so04.tci-thaijo.org/index.php/jar/article/view/267664