Bello, Khalid Ishola. “Facing Economic Recession in Nigeria: Lessons from Umar Ibn Al-Khattab’s Economic Policies”. Asy-Syari’ah 26, no. 2 (December 30, 2024): 167–186. Accessed December 6, 2025. https://journal.uinsgd.ac.id/index.php/asy-syariah/article/view/39427.