Tiabkaew B, Boonthum T. ROLES OF SCHOOL ADMINISTRATORS AND INNOVATOR CHARACTERISTICS OF TEACHERS UNDER THE NAKHON NAYOK PRIMARY EDUCATIONAL SERVICE AREA OFFICE . jlarus [internet]. 2025 Dec. 8 [cited 2026 Sep. 1];7(3):222-34. available from: https://so03.tci-thaijo.org/index.php/art/article/view/291263