Didane DH, Kudam D, Zulkafli MF, Mohd S, Batcha MFM, Khalid A. Development and Performance Investigation of a Unique Dual-rotor Savonius-type Counter-rotating Wind Turbine . IJIE. 2021;13(6):89-98. Accessed April 7, 2026. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/6360