“The Principle of Ats-Tsabit Bi Al-‘Urfi Ka Ats-Tsabit Bi Asy-Syar’i in DSN-MUI Fatwa No. 117 on Sharia Fintech”. 2024. Al-Mustashfa: Jurnal Penelitian Hukum Ekonomi Syariah 9 (2): 205-22. https://doi.org/10.24235/jm.v9i2.15241.