T. Ahmed Department Physics, Zeyad, and زیاد. “Fitting Equation of K-Shell Cross Section of Mg and Fe Atoms”. Journal of Education and Science (JES) 26, no. 2 (June 1, 2013): 89–93. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/17332.