THASSOPON , T. .; SUTHASINEE. COMPETENCY OF SCHOOL ADMINISTRATORS IN THE 21ST CENTURY AND HAPPINESS AT WORK OF TEACHERS UNDER THE MUNICIPALITY IN SAMUT SAKHON PROVINCE. Journal of MCU Nakhondhat, Nakhon Si Thammarat, Thailand, v. 11, n. 1, p. 271–278, 2024. Disponível em: https://so03.tci-thaijo.org/index.php/JMND/article/view/274507. Acesso em: 1 nov. 2024.