Mohd Daud, M.F.A. (2020) “Parametric Experimentation of Output Efficiency of Vibration-Based Impact Mode Piezoelectric Power Generator”, International Journal of Integrated Engineering, 13(2), pp. 61–71. Available at: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/6493 (Accessed: 22 July 2026).