1. Assistant Professor, Dept. of Civil Engineering, College of Engineering, Applied Science Univ., P.O. Box 926296, Amman 11931, Jordan (corresponding author).
2. Assistant Professor, Dept. of Industrial Engineering, Hashemite Univ., P.O. Box 150459, Zarqa 13115, Jordan.
3. Associate Professor, Dept. of Civil Engineering, College of Engineering, Univ. of Jordan, Amman 11942, Jordan.
4. Assistant Professor, College of Business Administration, Univ. of Jordan, Amman 11942, Jordan.