1. Department of Industrial Engineering, Islamic Azad University of Arak, Arak, Iran
2. Faculty of Management, Islamic Azad University, Arak Branch, Arak, Iran
3. University of Craiova, Faculty of Economics and Business Administration, Craiova, Romania
4. University of Craiova, Doctoral School of Economic Sciences, Craiova, Romania
5. Department of Civil Engineering, Islamic Azad University of Arak, Arak, Iran
6. Manipal Institute of Management, Manipal Academy of Higher Education, Manipal, Karnataka, India
7. University of Craiova, Faculty of Law, Department of Public Law and Administrative Sciences, Craiova, Romania