Mahmoud A. Elawi, KhalafI. Khalil, and Du´aa K. Hamad. “COMPARISON OF GAMMA–RAYS ATTENUATION MEASURED BY DIRECT AND COINCIDENCE SPECTRA”. Tikrit Journal of Pure Science 22, no. 12 (February 3, 2023): 98–108. Accessed June 18, 2025. https://tjpsj.org/index.php/tjps/article/view/936.