INSTRUCTIONAL LEADERSHIP AND SUPERVISORY COMPETENCE OF PUBLIC ELEMENTARY SCHOOL HEADS: A DESCRIPTIVE-CORRELATIONAL STUDY. Journal for the Advancement of Sustainable Development Goals, [S. l.], v. 1, n. 3, 2026. Disponível em: https://jasdg.com/index.php/jasdg/article/view/40. Acesso em: 29 jul. 2026.