Assulthoni, Fahmi. “PROGRESIVITAS PEMIKIRAN HUKUM UMAR IBN KHATTAB”. Ulumuna: Jurnal Studi Keislaman 1, no. 1 (June 10, 2015): 98–108. Accessed November 22, 2024. https://ejournal.kopertais4.or.id/madura/index.php/ulumuna/article/view/145.