1. School of Civil Engineering, Universiti Sains Malaysia, Nibong Tebal, Malaysia
2. School of Civil Engineering, Universiti Sains Malaysia Main Campus, Nibong Tebal, Malaysia
3. Department of International Relation Office, University of Fallujah, Fallujah, Iraq
4. Department of Dams and Water Resources Engineering, University of Anbar, College of Engineering, Ramadi, Iraq