[1] Istanbul Gelisim University,Faculty of Economics Administrative and Social Sciences, Department of International Logistics and Transportation
[2] Universiti Tenaga Nasional,Institute of Energy Policy and Research (IEPRe)
[3] Lebanese American University,Adnan Kassar School of Business, Department of Economics
[4] Walter Sisulu University,Department of Accounting Science
[5] Federal University of Lafia,Department of Economics
[6] Faculty of Economics,Department of Economics
[7] Administrative and Social Sciences,College of Energy Economics and Social Science, Institute of Energy Policy and Research
[8] Istinye University,undefined
[9] Universiti Tenaga Nasional,undefined