JINA, N.; THAMMATHIKUL, A.; CHAIRUENG, N. THE MODEL OF COMPETENCY DEVELOPMENT FOR SCHOOL ADMINISTRATORS TOWARD EDUCATIONAL EXCELLENCE UNDER THE SECONDARY EDUCATIONAL SERVICE AREA OFFICE NAKHON SI THAMMARAT. Journal of Social Science and Cultural, [S. l.], v. 10, n. 5, p. 208–218, 2026. Disponível em: https://so06.tci-thaijo.org/index.php/JSC/article/view/293512. Acesso em: 1 oct. 2026.