Y. Souza de Carvalho, E. Moraes da Silva, F. Rocha Pinto, D. Barbosa de Alencar, and I. F. Oliveira Bezerra, “Piezoeletricity as an Alternative Source of Electric Power Generation in an Education Institution in the Amazon”, Int J Innov Educ Res, vol. 7, no. 11, pp. 467–474, Nov. 2019, doi: 10.31686/ijier.vol7.iss11.1900.