Abidin, Zainal, and Ahmad Ajib Ridlwan. “Ulema’s Business Strategy in Indonesia: A Study Case”. al-Uqud : Journal of Islamic Economics 5, no. 2 (July 30, 2021): 345–365. Accessed July 2, 2025. https://journal.unesa.ac.id/index.php/jie/article/view/20245.