1. Faculty of Hospitality and Tourism, Prince of Songkla University, Phuket, Thailand
2. School of Hospitality Business Management, College of Business, Washington State University, Pullman, Washington, USA
3. School of Tourism and Hospitality, University of Johannesburg, Johannesburg, South Africa
4. School of Tourism, Hospitality and Event Management, Universiti Utara Malaysia, Malaysia
5. Faculty of Hospitality, Tourism and Wellness, Universiti Malaysia Kelantan, Kelantan, Malaysia