1. Assistant Professor, Dept. of Civil Engineering, Boise State Univ., Boise, ID 83725.
2. Associate Professor, Dept. of Civil Engineering, College of Engineering, King Saud Univ., Riyadh 11421.
3. Postdoctoral Fellow, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX 76019.
4. Researcher and Bugshan Research Chair in Expansive Soils, Dept. of Civil Engineering, College of Engineering, King Saud Univ., Riyadh 11421.