1. Royal Bhutan Police and College of Local Administration, Khon Kaen University, Khon Kaen, Thailand
2. Research Group on Local Affairs Administration and Smart City Development, College of Local Administration, Khon Kaen University, Khon Kaen, Thailand
3. Institute for Governmental Service and Research, University of Maryland, College Park, United States
4. College of Local Administration, Khon Kaen University, Khon Kaen, Thailand