Bunkue, Nittayakarn, Phrapalad Kosit Kosito, and Phramaha Supot Sumato. 2023. “INSTRUCTIONAL LEADERSHIP OF ADMINISTRATOR AFFECTING ACADEMIC EFFECTIVENESS OF ADMINISTRATION IN THE EDUCATIONAL OPPORTUNITY EXPANSION SCHOOLS UNDER THE NAKHON SI THAMARAT PRIMARY EDUCATIONAL SERVICE AREA OFFICE 2”. Journal of MCU Nakhondhat 10 (10). Nakhon Si Thammarat, Thailand:49-61. https://so03.tci-thaijo.org/index.php/JMND/article/view/271417.