“Mekanisme Penanganan Customer Service Terhadap Complaint Nasabah (Studi Kasus Pada Bank Sumatera Utara Cabang Syariah): Customer Service Handling Mechanism for Customer Complaints (Case Study at North Sumatra Bank Sharia Branch)”. 2023. Experimental Student Experience 1 (1): 41-47. https://doi.org/10.58330/ese.v1i1.120.