Gemanam, S.J., Egwuchi, B.O., Sombo, T., Agba, E.H. and Daniel, T. 2022. MEASUREMENT OF GAMMA RADIATION EMISSION FROM NATURALLY OCCURRING RADIOACTIVE SAMPLES OF USHONGO GEOLOGICAL ROCKS, NORTH CENTRAL NIGERIA. Nigerian Journal of Physics. 31, 2 (Dec. 2022), 47–51.