1. Department of Food Service and Management, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
2. School of Hotel and Tourism Management, The Hong Kong Polytechnic University, Hong Kong, Kowloon, China
3. Department of Hotel and Foodservice Management, Cheongju University, Cheongju-Si, Chungcheongbuk-Do, South Korea
4. Department of Tourism Management, College of Business Administration, Keimyung University, Daegu, South Korea