Demir, Ahmet. “A Benchmarking of Service Quality in Telecommunication Services: Case Study in Kurdistan Region of Iraq”. International Journal of Social Sciences & Educational Studies 5, no. 3 (March 1, 2019): 216–231. Accessed June 17, 2026. https://www.ijsses.tiu.edu.iq/index.php/ijsses/article/view/589.