Eyou, Aileen Y., and Badal H. Elias. 2013. “Calculation of the Ionization Cross Sections for Ion – Atom Collision by Using the Cdw-Eis Model”. Science Journal of University of Zakho 1 (1):372-82. https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/137.