Bello, G., Akpootu, D. O., Zoramawa, A. B., & Yusuf, A. (2024). Performance Analysis of Tropospheric Radio Refractivity along with Refractivity Gradient and Effective Earth Radius in the Coastal Zone of Nigeria. UMYU Scientifica, 3(3), 251–266. https://doi.org/10.56919/usci.2433.028