1. Arditi D. (1989). “Competitiveness of the U.S. housing industry.” Proc. Specialty Conf. on Affordable Housing ASCE.
2. Chou Y. (1972). Probability and statistics for decision making . Holt Reinhart and Winston Orlando Fla.
3. Gutierrez A. E. (1989). “Performance of U.S. construction companies in foreign markets ” thesis presented to Illinois Institute of Technology at Chicago Ill. in partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering.