Tipkonglat, Porntip, Nopparat Chairueang, and Weerayut Chatakarn. 2026. “THE ADMINISTRATION SKILLS OF THE 21ST CENTURY AFFECTING THE EFFECTIVENESS OF SCHOOL UNDER NAKHON SI THAMMARAT PRIMARY EDUCATIONAL SERVICE AREA OFFICE 3”. Journal of Educational Review Faculty of Education in MCU 13 (1):267-79. https://so02.tci-thaijo.org/index.php/EDMCU/article/view/283728.