S. J. Gemanam, B. O. Egwuchi, T. Sombo, E. H. Agba, and T. Daniel, “MEASUREMENT OF GAMMA RADIATION EMISSION FROM NATURALLY OCCURRING RADIOACTIVE SAMPLES OF USHONGO GEOLOGICAL ROCKS, NORTH CENTRAL NIGERIA”, NJP, vol. 31, no. 2, pp. 47–51, Dec. 2022.