Taher Salim, Bahzad, Sirwan Latif Haji, and Rizgar Saed Hussein. “Factors Affecting Customer Satisfaction in the Internet Service Industry (Exploratory Study of Internet Service Providers in Erbil - Kurdistan Region)”. Polytechnic Journal 9, no. 1 (June 30, 2019): 50-63. Accessed May 5, 2024. https://journals.epu.edu.iq/index.php/polytechnic/article/view/37.