Klahan, A., & Sunthon Kohtbantau , S. K. . (2022). Operations of Internal Supervision of Schools in Doem Bang Nang Buat District, Suphan Buri Province. Journal for Developing the Social and Community, 9(3), 427–438. retrieved from https://so03.tci-thaijo.org/index.php/rdirmu/article/view/256100