“STATISTICAL TUNING OF COST 231 HATA MODEL IN DEPLOYED 1800MHZ GSM NETWORKS FOR A RURAL ENVIRONMENT” (2020) Nigerian Journal of Technology, 39(4), pp. 1216–1222. Available at: https://mail.nijotech.com/index.php/nijotech/article/view/2466 (Accessed: 19 April 2026).