Ammar A. Battawy, Asmaa Ahmad Aziz and Huda Saade Ali 2023. Radon Concentration measurement in an Imported Tea using Nuclear Track Detector CN-85. Tikrit Journal of Pure Science. 21, 1 (Feb. 2023), 68–70. DOI:https://doi.org/10.25130/tjps.v21i1.951.