Haji, Serwan L. “The Influence of Service Quality Delivery on Customer Loyalty in the Banking Sector in Erbil, Iraq”. Polytechnic Journal of Humanities and Social Sciences 4, no. 1 (February 11, 2023): 45-52. Accessed April 30, 2024. https://journals.epu.edu.iq/index.php/ptjhss/article/view/1047.