Mahmoud A. Elawi, KhalafI. Khalil, Du´aa K. Hamad. COMPARISON OF GAMMA–RAYS ATTENUATION MEASURED BY DIRECT AND COINCIDENCE SPECTRA. Tikrit J. Pure Sci. [Internet]. 2023 Feb. 3 [cited 2025 Jun. 18];22(12):98-108. Available from: https://tjpsj.org/index.php/tjps/article/view/936