Soares de Oliveira, Fábio, Layrton Marinho Fernandes, Aristeu Souza da Fonseca, Fabiana Rocha Pinto, David Barbosa de Alencar, and Manoel Henrique Reis Nascimento. “Proposed Use of Photovoltaic Energy in a Traffic Light System”. International Journal for Innovation Education and Research 7, no. 11 (November 1, 2019): 1164–1175. Accessed May 1, 2024. https://scholarsjournal.net/index.php/ijier/article/view/1981.