1. School of Education and Music, Hainan Vocational University of Science and Technology, Haikou, China
2. Department of Economics, Division of Management and Administrative Sciences, University of Education, Lahore, Pakistan
3. Public Course Department, Hainan Vocational University of Science and Technology, Haikou, China
4. College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing, China