1. National Kaohsiung University of Science and Technology,Department of Electrical Engineering,Kaohsiung City,Taiwan
2. Nha Trang University,Department of Electrical and Electronic Engineering,Khanh Hoa,Vietnam
3. Thai Binh Duong University,Department of Tourism and Department of Economics and Management,Khanh Hoa,Vietnam
4. National Kaohsiung University of Science and Technology,Department of Tourism Management, Business Intelligence School,Kaohsiung City,Taiwan