Al-Mashhadani, Asia H. “Estimating Excess of Lung Risk Factor of Radon Gas for Some Houses in Al-Fallujah City”. Iraqi Journal of Physics 13, no. 26 (February 10, 2019): 160–170. Accessed March 25, 2025. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/297.