da Silva Grandes Reis, Anne Valéria, Livia da Silva Oliveira, Aristeu Souza da Fonseca, and David Barbosa de Alencar. “Improvement Proposal for Cell Phone Signal Reception in Tabatinga-Amazonas”. International Journal for Innovation Education and Research 7, no. 10 (October 1, 2019): 565–575. Accessed May 8, 2024. https://scholarsjournal.net/index.php/ijier/article/view/1803.