MULTAZAM. DARUL QUTNI; ENI KUSRINI. IMPLEMENTATION OF EXCELLENT SERVICE TO BANK SYARIAH INDONESIA (BSI) CUSTOMERS. World Economics and Finance Bulletin, [S. l.], v. 29, p. 37-45, 2023. Disponível em: https://scholarexpress.net/index.php/wefb/article/view/3503. Acesso em: 11 jan. 2025.