Haghighat N. Proposing a framework for airline service quality evaluation using Type-2 Fuzzy TOPSIS and non-parametric analysis. J. sustain. dev. transp. logist. [Internet]. 2017 Dec. 19 [cited 2026 May 20];2(2):6-25. Available from: https://jsdtl.sciview.net/index.php/jsdtl/article/view/31