The Effect of Principal Supervision and Instructional Motivation on Students’ Academic Achievement in Islamic Primary Schools. MULTILITERA: Journal of Multidisciplinary Literacy, [S. l.], v. 1, n. 1, p. 34–41, 2026. Disponível em: https://journal.harmoni.or.id/index.php/multilitera/article/view/5. Acesso em: 12 apr. 2026.