Rum, Muh. “RISK CONTROL OF CONTINGENCY TRANSACTION IN PROFIT SHARING SYSTEM”. Al-Mashrafiyah (Jurnal Ekonomi, Keuangan dan Perbankan Syariah) 1, no. 1 (Oktober 1, 2017). Diakses April 29, 2025. https://tes-ojs.uin-alauddin.ac.id/index.php/almashrafiyah/article/view/4688.