1. Department of Applied Mathematics and Information Systems, Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Suratthani, Thailand
2. Department of Business Development, Faculty of Liberal Arts and Management Sciences,Prince of Songkla University, Surat Thani Campus, Suratthani, Thailand
3. Department of Economics, Faculty of Liberal Arts and Management Sciences, Prince of Songkla University, Surat Thani Campus, Suratthani, Thailand