1. Assistant Professor, Dept. of Civil Engineering, Tafila Technical Univ., Tafila 66110, Jordan.
2. Associate Professor, Dept. of Civil Engineering and Construction Engineering, Western Michigan Univ., Kalamazoo, MI 49008 (corresponding author).
3. Professor and Chair, Dept. of Civil Engineering and Construction Engineering, Western Michigan Univ., Kalamazoo, MI 49008.
4. Assistant Professor, Dept. of Business Administration, Trine Univ., 720 Park Ave., Angola, IN 46703.