Thongkliang, Sutarat, Werayut Chatakan, and Chusak Ekpetch. “INTERNAL SUPERVISION MODEL FOR TEACHER TEACHING DEVELOPMENT IN THE TRANSITIONAL ERA UNDER THE OFFICE OF THE SECONDARY EDUCATION SERVICE AREA OFFICE NAKHON SI THAMMARAT”. Journal of Social Science and Cultural 10, no. 3 (March 31, 2026): 349–358. accessed October 13, 2026. https://so06.tci-thaijo.org/index.php/JSC/article/view/292405.