Kotila, A. A., and F. S. Koki. 2022. “DETERMINATION OF RADON-222 CONCENTRATION FROM THE MINING SITES OF MARU, ANKA AND BUKKUYUM AREAS IN ZAMFARA STATE, NIGERIA”. Nigerian Journal of Physics 31 (2):239-46. https://njp.nipngr.org/index.php/njp/article/view/77.