Lailaturrokhmah, Nurul, and Moh. Chairul Annas. 2025. “Contract Engineering in OTO Financing Products at Bank Syariah Indonesia”. Jurnal Mediasas: Media Ilmu Syari’ah Dan Ahwal Al-Syakhsiyyah 8 (4):818-30. https://doi.org/10.58824/mediasas.v8i4.474.