A. Alani , T. ., D. . A. Mutlak, and A. O.Farhan. “Determination of Radon Gas Concentrations and Annual Effective Dose in Ground Water Samples in Some Regions in Anbar Governorate”. Mustansiriyah Journal for Sciences and Education, vol. 16, no. 1, Sept. 2020, pp. 1-8, https://edumag.uomustansiriyah.edu.iq/index.php/mjse/article/view/235.