Tizgui, I., F. El Guezar, H. Bouzahir, and A. N. Vargas. “Estimation and Analysis of Wind Electricity Production Cost in Morocco”. International Journal of Energy Economics and Policy, vol. 8, no. 3, May 2018, pp. 58-66, https://www.econjournals.com/index.php/ijeep/article/view/5993.