Amer A. Khadim, Waleed K. Al-Ashtrai. Design of Piezoelectric Energy Harvester Generating Power over a Range of Excitation Frequencies Using. DE [Internet]. 2022Jan.14 [cited 2024Apr.24];(1):32 -40. Available from: http://thedesignengineering.com/index.php/DE/article/view/8683