Implementation of the Spiritual Leadership Model in Improving the Quality of Education in Islamic Boarding Schools. JOELS: Journal of Election and Leadership , [S. l.], v. 4, n. 2, p. 159–167, 2023. DOI: 10.31849/joels.v4i2.16287. Disponível em: https://journal.unilak.ac.id/index.php/joels/article/view/16287. Acesso em: 25 mar. 2026.