Bong, Y.J., and S.L. Kok. “Characterization on Resonant Shifting of Cantilever Based Piezoelectric for Battery-Less Low Frequency Acceleration Measurement”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 10, no. 2-2 (May 31, 2018): 39–42. Accessed April 23, 2024. https://jtec.utem.edu.my/jtec/article/view/3956.