The Principle of ats-Tsabit bi al-‘Urfi ka ats-Tsabit bi asy-Syar’i in DSN-MUI Fatwa No. 117 on Sharia Fintech. Al-Mustashfa: Jurnal Penelitian Hukum Ekonomi Syariah, [S. l.], v. 9, n. 2, p. 205–222, 2024. DOI: 10.24235/jm.v9i2.15241. Disponível em: https://journal1.uinssc.ac.id/index.php/al-mustashfa/article/view/15241. Acesso em: 12 apr. 2026.