1. Associate Professor of Civil Engineering and Vice Dean of Research, Jordan Univ. of Science and Technology, P.O. Box (3030), Irbid, Jordan.
2. Professor of Civil Engineering, Vice Dean of Engineering Faculty, Jordan Univ. of Science and Technology, P.O. Box (3030), Irbid, Jordan.
3. Teaching Assistant, Civil Engineering Dept., Hashemite Univ., Zarqa, Jordan.