Mutholib M. THE EFFECT OF THE QUALITY OF BANKING SERVICES ON CUSTOMER SATISFACTION AT PT BANK SUMUT SYARIAH MEDAN BRANCH. Injects [Internet]. 2021 Apr. 13 [cited 2025 Jul. 6];2(1):21-8. Available from: https://www.jurnal.ceredindonesia.or.id/index.php/injects/article/view/176