Mohammed A. Al Madani, Yousef A. Abdullah, Elfitouri K. Ahmied, Noura S. Hawashi and Mahmoud J. Altayeb (2022) “Investigation of Wadi Al-Shatti Iron Oxide Effects on the Gamma Ray Attenuation and Compression Strength of Hardened Concrete”, Journal of Pure & Applied Sciences , 21(4), pp. 213–218. doi: 10.51984/jopas.v21i4.2213.