Asriadi, A. et al. 2026. A Synergy Development Model for The Islamic EconomyEcosystem-Based on Productive Debtors: EvidenceFrom Financing ‎The Customers of The BankSumut Sharia. International Journal of Accounting and Economics Studies. 13, 2 (Feb. 2026), 37–46. DOI:https://doi.org/10.14419/5nvdjy97.