Mahsum K, Muhammed P, Omer A. Provider-customer perceptions in service quality: A Gap analysis at Ishik University, Sulaimani. Econ. manag. sustain. [Internet]. 2019 Nov. 30 [cited 2026 Jul. 7];4(2):49-60. Available from: https://jems.sciview.net/index.php/jems/article/view/80