Ibrahim, G. G., U. S. Aliyu, M. U. Najib, and A. M. Hamza. “Radiation Exposure Levels Associated With Tin Mining Sites Around Toro Area, Bauchi State, Nigeria”. Physics Memoir - Journal of Theoretical & Applied Physics, vol. 1, no. 3, Sept. 2019, pp. 126-31, https://physicsmemoir.org.ng/index.php/pmjtap/article/view/15.