1. Research Management Centre, International Islamic University Malaysia (IIUM), Jalan Gombak 53100, Malaysia
2. Faculty of Administration & Economics, Shabwah University, Shabwah, Yemen
3. Faculty of Education, International Islamic University Malaysia (IIUM), Jalan Gombak 53100, Malaysia
4. Administrative Science Department, College of Administrative and Financial Science, Gulf University, Sanad 26489, Bahrain