1. Civil Engineering Department, University of Jordan, Amman, Jordan
2. Civil Engineering Department, Philadelphia University, Amman, Jordan
3. Civil Engineering Department, Jordan University of Science and Technology, Irbid, Jordan
4. Faculty of Engineering, Department of Civil Engineering, Al-Ahliyya Amman University, Amman, Jordan
5. On Sabbatical Leave from Department of Civil Engineering, the University of Jordan, Amman, Jordan