GUIMARAES FERREIRA, S.; DA SILVA OLIVEIRA, L.; BARBOSA DE ALENCAR, D. Application of Energy Efficiency in A Company Through A Photovoltaic Energy System on Grid. International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 8, n. 11, p. 634–645, 2020. DOI: 10.31686/ijier.vol8.iss11.2797. Disponível em: https://ijier.net/ijier/article/view/2797. Acesso em: 28 jan. 2021.