1. Department of Hospitality and Event Management, Faculty of Business Administration and Accountancy, Khon Kaen University, Khon Kaen 40002, Thailand
2. College of Tourism and Hospitality, Sripatum University, Khon Kaen 40000, Thailand
3. Department of Tourism Management, Faculty of Business Administration, Rajapark Institute, Bangkok 10310, Thailand
4. School of Tourism and Hospitality Management, Suan Dusit University, Bangkok 10300, Thailand