MOHAMMAD ZAKKI. Servant Leadership And Its Influence On Ethical Values And Collaborative Culture In Educational Organizations. Sulaiman: Journal of Leadership, [S. l.], v. 1, n. 1, p. 34–48, 2026. Disponível em: https://journal.eduglobal.ac.id/index.php/sjl/article/view/20. Acesso em: 23 sep. 2026.