1. Faculty of Hospitality and Tourism, Prince of Songkla University, Phuket Campus, Thailand
2. Hotel Management Department, Faculty of Tourism and Hotels, Suez Canal University, Ismailia, Egypt
3. Department of Tourism, Collège of Arts & Social Science, Sultan Qaboos University, Muscat, Oman
4. Faculty of Business and Management, Universiti Teknologi Mara Malaysia, Shah Alam, Malaysia