[1]
H. Al-Shamma, S., سالم, I. Azawi, M. and مزاحم 2013. A suitable analytical formula for the K shell ionization cross section of carbon and potassium atoms by electron impact. Journal of Education and Science (JES). 26, 3 (Aug. 2013), 18–22. DOI:https://doi.org/10.33899/edusj.2013.89914.