Ribeiro Tavares, O.; Rocha Pinto, F.; Barbosa de Alencar, D.; Henrique Reis Nascimento, M. Piezoelectric Energy Characterization: Materials and Utilization. Int J Innov Educ Res 2019, 7 (11), 1176-1184. https://doi.org/10.31686/ijier.vol7.iss11.1982.