SHEU, A. L. .; SULEMAN, K. O. .; ADENIJI, Q. A. . Investigation of the Vertical Profile Radio Refractivity Gradient and Effective Earth Radius Factor (k-factor) in Transmission Link Over Oyo, Oyo State, South Western Nigeria. Tanzania Journal of Science, [S. l.], v. 48, n. 1, p. 134–139, 2022. DOI: 10.4314/tjs.v48i1.12. Disponível em: https://tjs.udsm.ac.tz/index.php/tjs/article/view/1006. Acesso em: 27 nov. 2022.