Çalik, A., N. Yapici Pehlivan, and C. Kahraman. “An Integrated Fuzzy AHP/DEA Approach for Performance Evaluation of Territorial Units in Turkey”. Technological and Economic Development of Economy, vol. 24, no. 4, June 2018, pp. 1280-02, doi:10.3846/20294913.2016.1230563.