ลาภประเสริฐ โ. THE DEVELOPMENT OF AN ACADEMIC LEADERSHIP MODEL FOR SCHOOL ADMINISTRATORS IN EDUCATIONAL OPPORTUNITY EXPANSION SCHOOLS LOWER NORTH-EASTERN REGION 1. Pathumthani University Academic Journal, [S. l.], v. 18, n. 1, p. 62–76, 2026. Disponível em: https://so05.tci-thaijo.org/index.php/ptujournal/article/view/288024. Acesso em: 16 sep. 2026.