The principal as a driver of quality: a systematic analysis of managerial competencies in improving non-academic achievement. Educenter : Jurnal Ilmiah Pendidikan, [S. l.], v. 4, n. 1, 2025. DOI: 10.55904/educenter.v4i1.1883. Disponível em: https://jurnal.arkainstitute.co.id/index.php/educenter/article/view/1883. Acesso em: 23 apr. 2026.