Ertugrul, Irfan, Tayfun Oztas, Abdullah Ozcil, and Gulin Zeynep Oztas. 2016. “Grey Relational Analysis Approach In Academic Performance Comparison Of University: A Case Study Of Turkish Universities”. European Scientific Journal, ESJ 12 (10). https://doi.org/10.19044/esj.2016.v12n10p%p.