Eisa, M. E. M., Ali, M. D. M., & 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), 10033–10038. https://doi.org/10.48084/etasr.5513