Bulut, Cagri, and Sefer Aydogan. “Airport Service Quality: A Reconceptualization and a Practical Application on the Non-Aeronautical Services”. Aviation 24, no. 4 (December 21, 2020): 182-196. Accessed April 24, 2024. https://journals.vilniustech.lt/index.php/Aviation/article/view/13290.