Mueangmuang, Juthamat, Banjong Jaroensuk, and Yanisa Boonchit. “Self - Development Model of Teachers in Learning Management in the 21st Century under The Secondary Educational Area Office Surat Thani”. Journal of the Association of Researchers 26, no. 4 (September 22, 2021): 21–42. accessed October 11, 2026. https://so04.tci-thaijo.org/index.php/jar/article/view/249873.