REZKI, Sri; M, Amril. Transformasi ketatanegaraan Islam: Telaah historis terhadap ijtihad politik Umar bin Khattab. Takuana: Jurnal Pendidikan, Sains, dan Humaniora, [S. l.], v. 4, n. 1, p. 68–81, 2025. DOI: 10.56113/takuana.v4i1.127. Disponível em: https://e-learning.man4kotapekanbaru.sch.id/takuana/article/view/127. Acesso em: 8 jun. 2026.