List of Articles نرخ تفکیک پذیری فیشر (FDR). Open Access Article Abstract Page Full-Text 1 - Clustering Iranian Gas Industry Managers and Ranking Their Competencies via the EFQM Excellence Model-based Evaluation with an Artificial Intelligence Approach Ali reza Zamanian Majid Jahangirfard Farshad Hajalian 10.52547/istd.31542.8.31.51