STATISTICAL TUNING OF COST 231 HATA MODEL IN DEPLOYED 1800MHZ GSM NETWORKS FOR A RURAL ENVIRONMENT. Nigerian Journal of Technology, [S. l.], v. 39, n. 4, p. 1216–1222, 2020. Disponível em: https://mail.nijotech.com/index.php/nijotech/article/view/2466. Acesso em: 19 apr. 2026.