1. Fundamentals of wind energy;Cheremisinoff,1979
2. Syrian Wind Atlas (1998), Prime ministry publications, Renewable Energy Office.
3. Elliott, DL, Schwartz, MN. Wind energy potential in the United States, 1993, PNL-SA-23109.
4. Troen I, Petersen E.L., European Wind Atlas, Commission of the European Communities, Directorate-General for Science, Brussels, Belgium 1989.
5. Wind Power Equipment;Warne,1983