1. Department of Public Administration, Faculty of Humanities and Social Sciences, Khon Kaen University, Khon Kaen, Thailand
2. Department of Government Affairs and Administration, Jusuf Kalla School of Government, Universitas Muhammadiyah Yogyakarta, Yogyakarta, Indonesia
3. Department of Political Science, Iligan Institute of Technology, Mindanaou State University, Iligan, The Philippines