Mahmoud A. Elawi, KhalafI. Khalil, و Du´aa K. Hamad. "COMPARISON OF GAMMA–RAYS ATTENUATION MEASURED BY DIRECT AND COINCIDENCE SPECTRA". Tikrit Journal of Pure Science 22, no. 12 (فبراير 3, 2023): 98–108. تاريخ الوصول مايو 20, 2024. https://tjps.tu.edu.iq/index.php/tjps/article/view/936.