Norkomaria, S., and M. Qadarin. “Implementation of the Murabahah Bil Wakalah Contract on Micro Loan Products at BSI Sampang from a Sharia Economic Perspective”. International Journal of Economics, Business and Innovation Research, Vol. 5, no. 05, Aug. 2026, pp. 2329-46, doi:10.63922/ijebir.v5i05.5972.