INVESTIGATING PROPAGATION CURVES OF ELECTRIC FIELD INTENSITY OF JIGAWA MEDIUM FREQUENCY RADIO TRANSMITTER. Nigerian Journal of Technology, [S. l.], v. 38, n. 3, p. 695–701, 2019. Disponível em: https://mail.nijotech.com/index.php/nijotech/article/view/2061. Acesso em: 4 jun. 2026.