1. Centre for Leadership and Sustainable Development, College of Management,Mahidol University, Bangkok, Thailand
2. Department of Educational Leadership and Management, University of Johannesburg, Johannesburg, South Africa
3. Department of HR and Administration, Ha Tinh University, Ha Tinh City, Vietnam
4. Vietnam National Institute of Educational Sciences, Hanoi, Vietnam
5. Quang Tri Training College, Dong Ha city, Vietnam