1. College of Hotel and Tourism Management, Youngsan University, Haeundae-gu, Busan, South Korea
2. School of Hotel & Tourism Management, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR
3. Foodservice & Culinary arts, College of Health Sciences, Kyungnam University, Changwon-si, Gyeongsangnam-do, Republic of Korea
4. College of Hospitality and Tourism Management, Sejong University, Gwanjin-Gu, Seoul Korea