M. Ali, Aree, et al. “EVALUATING HOTEL SERVICE QUALITY: AN EXPLORATORY STUDY ON THE 4 AND 5 STAR HOTELS IN ERBIL AND DUHOK IN KURDISTAN-IRAQ”. Academic Journal of Nawroz University (AJNU), vol. 9, no. 1, Feb. 2020, https://journals.nawroz.edu.krd/files/article/view/882.