Trindade Ribeiro, L. Y. ., da Silva Oliveira, L., Barbosa de Alencar, D. and Silva Parente, R. (2019) “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, 7(11), pp. 885–897. doi: 10.31686/ijier.vol7.iss11.1944.