1. Department of Inspection and Legislation, Hue University, Hue City, Vietnam
2. Institute of Psychology, Viet Nam Academy of Social Sciences, Hanoi City, Vietnam
3. Department of Psychology and Education, University of Education, Hue University, Hue City, Vietnam
4. Faculty of English, University of Foreign Languages and International Studies, Hue University, Hue city, Vietnam
5. Graduate Research Academy, Macquarie University, Sydney, Australia
6. Department of Foreign Languages, Ha Tinh University, Ha Tinh, Vietnam