NUR AFLAHA, Ardhina. Manajemen Krisis Ramadah Umar bin Khattab Perspektif Sejarah Ekonomi Islam. Rihlah: Jurnal Sejarah dan Kebudayaan, [S. l.], v. 7, n. 1, p. 1–12, 2019. DOI: 10.24252/rihlah.v7i1.9371. Disponível em: https://journal.uin-alauddin.ac.id/index.php/rihlah/article/view/9371. Acesso em: 9 jun. 2025.