de Lima, L. G., and J. A. da Silva. “Estudo Participativo Sobre Coronavírus (Covid-19) No Ambiente Escolar / Participatory Study about Coronavirus (Covid-19) at School Environment”. Brazilian Journal of Development, vol. 7, no. 6, June 2021, pp. 64820-3, doi:10.34117/bjdv7n6-725.