1. Chicago Iron and Bridge;Proc. Solar Desalination workshop, SERI/CP-761-1077, Denver, Colorado,23251981
2. H. Sofrata, A.F. Abdul-Fattah, F. Abul Fottoh and A. Sharaf, Document for completion of project for development of Renewable Energy Systems starting in 1979), Technical report, Department of Mechanical Engineering, King Saud University, Riyadh, Saudi Arabia, January 1986.