Nursani Btr, R. 2022. Islamic Work Ethics and Service Quality on Banking Performance at Bank Sumut Syariah Medan Branch. Jurnal Ekonomi, Manajemen, Akuntansi dan Keuangan. 3, 3 (May 2022), 727 –736. DOI:https://doi.org/10.53697/emak.v3i3.582.