Mohd Tahir MS, Mohamad Hanif NHH, Wahid AN. Fast Fourier Transform-Based Performance Analysis of a Hybrid Piezoelectric-Electromagnetic Energy Harvester. IJIE. 2026;18(3):356-365. Accessed August 7, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/22409