Eisa, M.E.M., Ali, M.D.M. and Abuualreish, M. J. 2023. Study of Gamma-ray Shielding of Two Different Heavy Metals and their Combination for Cs-137 and Co-60 Sources. Engineering, Technology & Applied Science Research. 13, 1 (Feb. 2023), 10033–10038. DOI:https://doi.org/10.48084/etasr.5513.