1. Historical development of the windmill;Sheppard,1994
2. Aerodynamics of Wind Turbines;Hansen,2008
3. Renewable energies organization of Iran. http://www.suna.org.ir/executive-windandwaves-wind energy-en.html.
4. The feasibility of manufacturing wind turbines;Fadai;J Renew Sustain Energy Rev,2007
5. News letter from Iranian society of solar energy 2003, a report on the largest wind turbine in Germany with a capacity of 4.5MW.