1. College of Asia Pacific Studies, Ritsumeikan Asia Pacific University, 1-1Jumonjibaru, 874-8577, Beppu, Japan
2. IVE (Haking Wong), 702 Lai Chi Kok Road, Cheung Sha Wan, Kowloon, Hong Kong, China
3. Asia-Pacific Academy of Economics and Management, Department of Integrated Resort and Tourism Management, Faculty of Business Administration, University of Macau Avenida da Universidade, Taipa, Macau, China