USE OF RADIO RELAY DEVICES IN TELECOMMUNICATION SYSTEMS. International Journal of Advance Scientific Research, [S. l.], v. 3, n. 04, p. 72–77, 2023. DOI: 10.37547/ijasr-03-04-10. Disponível em: https://sciencebring.com/index.php/ijasr/article/view/204. Acesso em: 7 jul. 2025.