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 December 3, 2024. http://467182.nmy9asj5x.asia/index.php/eee/article/view/291.