1. Department of International Office Administration, College of Science & Industry Convergence, Ewha Womans University, Seoul, Republic of Korea
2. Department of Tourism Management, College of Social Sciences, Gangneung-Wonju National University, Gangneung-si, Gangwon-do, Republic of Korea
3. Department of Tourism Management, College of Social Sciences, Gachon University, Seongnam-si, Gyeonggi-do, Republic of Korea