Syahputra, Reza, and Maryam Batubara. “The Influence of Service Quality on Customer Satisfaction at PT BBRS Al-Washliyah Medan”. Al-Mashrafiyah: Jurnal Ekonomi, Keuangan, Dan Perbankan Syariah, vol. 9, no. 1, Aug. 2025, pp. 148-62, doi:10.24252/al-mashrafiyah.v9i1.60464.