M.Z.A, Rahim, Hamid M.N.A, Yusuf Z.N.M, and Soid S.N.M. “Parametric Study for Vibration Energy Harvester System”. International Journal of Engineering and Technology 7, no. 4.38 (December 3, 2018): 1647–1650. Accessed April 28, 2025. https://sciencepubco.com/index.php/IJET/article/view/29224.