Investigation of Point Refractivity Gradient and Geoclimatic Factor at 70 m Altitude in Yenagoa, Nigeria. J. Nig. Soc. Phys. Sci. [Internet]. 2023 Jan. 27 [cited 2024 May 4];5(1):1081. Available from: https://www.journal.nsps.org.ng/index.php/jnsps/article/view/1081