AL-MASHHADANI, Asia H. Estimating excess of lung risk factor of radon gas for some houses in Al-Fallujah city. Iraqi Journal of Physics, Baghdad, Iraq., v. 13, n. 26, p. 160–170, 2019. DOI: 10.30723/ijp.v13i26.297. Disponível em: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/297. Acesso em: 25 mar. 2025.