TRINDADE RIBEIRO, L. Y. .; DA SILVA OLIVEIRA, L.; BARBOSA DE ALENCAR, D.; SILVA PARENTE, R. Economic analysis of an automated lighting system with presence sensor at a state school in the city of Manacapuru-AM. International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 7, n. 11, p. 885–897, 2019. DOI: 10.31686/ijier.vol7.iss11.1944. Disponível em: https://ijier.net/ijier/article/view/1944. Acesso em: 4 dec. 2021.