Muhammad, B. G., U. Sani, A. R. Usman, and D. S. Joseph. 2020. “EVALUATION OF SHIELDING BARRIER OF A COMPUTED TOMOGRAPHY UNIT ”. FUDMA JOURNAL OF SCIENCES 4 (1), 150 -55. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/32.