1. Monostori, L; Viharos, Zs. J; Erdos, G;Kovacs, A: AI supported maintenance and reliability system in wind energy production, The International Symposium on Methods of Artificial Intelligence AI-METH 2009, November 18-19, 2009.Gliwice, Poland, paper nr.:20.
2. Energy Research Lab, College of Engineering, Effat University, Saudi Arabia
3. M. I. Blanco, The economics of wind energy, Renewable and Sustainable Energy Reviews,13:1372-1382,2009.
4. REN21, Global Status Report, Renewable 2018, Renewable Energy Policy Network for the 21st Century.
5. KSA, Kingdom of Saudi Arabia. National Transformation Program ,2017.