1. Putra Business School, Selangor, Malaysia
2. School of Business and Economics, Universiti Putra Malaysia, Serdang, Malaysia
3. Department of Economics, Nigerian Army University Biu, Borno State, Nigeria
4. School of Government, COLGIS (College of Law, Government and International Studies), Universiti Utara Malaysia, Sintok, Malaysia
5. Centre for Academic Development, National Defence University of Malaysia, Kuala Lumpur, Malaysia