Jasper A., Agbakwuru, and Ibhadode Akii A.O. “Development of a Wheel and Axle System Using a Resonating Spring for a Power Generation”. IJRDO - Journal of Electrical And Electronics Engineering 3, no. 10 (October 31, 2017): 06-17. Accessed October 6, 2024. http://13.234.104.160/index.php/eee/article/view/291.