CHAMNAN, E.- angkul . ACADEMIC MANAGEMENT GUIDELINES FOR IMPROVING ACADEMIC ACHIEVEMENT OF HIGHLAND SCHOOL STUDENTS, PHITSANULOK PRIMARY EDUCATIONAL SERVICE AREA OFFICE 3. Journal of MCU Nakhondhat, Nakhon Si Thammarat, Thailand, v. 8, n. 8, p. 90–104, 2021. Disponível em: https://so03.tci-thaijo.org/index.php/JMND/article/view/254270. Acesso em: 26 sep. 2022.