phitpaew, kanchana, Subruangthong, W. and 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), pp. 151–166. available at: https://so04.tci-thaijo.org/index.php/jar/article/view/267664 (accessed: 11 October 2026).