Safarov, Alisher, and Rasul Mamedov. “STUDY OF EFFECTIVE OMNI-DIRECTIONAL VERTICAL AXIS WIND TURBINE FOR LOW SPEED REGIONS”. IIUM Engineering Journal 22, no. 2 (July 4, 2021): 149–160. Accessed December 9, 2021. https://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/1565.