1. College of Hospitality and Tourism Management, Sejong University, Seoul, South Korea
2. School of Hospitality and Tourism Management, Spears School of Business, 365 Human Sciences, Oklahoma State University, Stillwater, OK, USA
3. Department of Food Service and Management, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Malaysia
4. Major in Tourism Management, College of Business Administration, Keimyung University, Daegu, South Korea