I. . K. Ahmed, M. H. Jasim, and S. S. . Shafik, “Measurement of Radon Concentration in Fly Ash Samples from Electric Power Stations in Iraq in The Middle & South by using Nuclear Track Detector CR-39”, Iraqi Journal of Science, vol. 57, no. 2C, pp. 1402–1407, Jun. 2022, Accessed: Jan. 03, 2026. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7126