1. School of Business and Law, Edith Cowan University, Perth, Australia
2. School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
3. School of Tourism, Dokuz Eylul University, Foca, Izmir, Turkey
4. College of Tourism, Sichuan University, Chengdu, People’s Republic of China
5. School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, People’s Republic of China