DEVELOPMENT OF INFRARED-BASED LOW COST BIDIRECTIONAL COUNTER. FULafia Journal of Science and Technology , [S. l.], v. 4, n. 2, p. 10–16, 2018. Disponível em: https://lafiascijournals.org.ng/index.php/fjst/article/view/243.. Acesso em: 5 oct. 2024.