J. Fatahi,S , , E. Mohammed,M , and M. Aman Allah,S . "Comparative study of the radiative Energy Loss and RCSDA of electron within ranges (0.01 ≤ E ≤ 10 )MeV in (_15^31)P , (_19^39)K and (_20^40)Ca", Kirkuk Journal of Science, 11, 2, 2016, 375-390. doi: 10.32894/kujss.2016.124595