1. Department of Aircraft Airframe-Engine Maintenance, Civil Aviation School, Süleyman Demirel University, Isparta, Turkey; Department of Aviation Management, Kazimieras Simonavičius University, Vilnius, Lithuania
2. Department of Business Administration, Faculty of Business, Dokuz Eylül University, Izmir, Turkey
3. Department of Transportation Service, Keçiborlu Vocational School, Isparta University of Applied Sciences, Isparta, Turkey