Al-Obeidi, H. T. H., and R. Owaid Kadhim. “Close and Distans Collision Dependent to Calculate Stopping Power of Alpha Particles of Some Organic Compounds”. Al-Qadisiyah Journal of Pure Science, Vol. 22, no. 4, July 2018, pp. 384 -99, https://journalsc.qu.edu.iq/index.php/JOPS/article/view/816.