Low, P. S., R. Ramlan, H. A. Ghani, and N. S. Muhammad. “Experimental Analysis on the Transduction Coefficient of a Non-Linear Electromagnetic Energy Harvesting Device With Softening Stiffness”. International Journal of Automotive and Mechanical Engineering 17, no. 2 (July 3, 2020): 7816–7831. Accessed November 22, 2024. https://journal.ump.edu.my/ijame/article/view/2582.