LUHURINGBUDI, Teguh. Transformative Leadership and Institutional Ethics: A Study of Umar’s Caliphate. Ittesaal – Journal of Connecting Discourses, [S. l.], v. 1, n. 1, p. 55–71, 2024. DOI: 10.64984/ijcd.1.1.2024.05. Disponível em: https://journal.ehya.com.pk/ijcd/article/view/2. Acesso em: 1 apr. 2026.