1. Fellow, ASCE
2. Grad. Student, Del E. Webb School of Constr., Box 870204, Arizona State Univ., Tempe, AZ 85287-0204.
3. Eminent Scholar, Del E. Webb School of Constr., Box 870204, Arizona State Univ., Tempe, AZ.
4. Asst. Prof., Del E. Webb School of Constr., Box 870204, Arizona State Univ., Tempe, AZ.