Alham·adani, A. H., 		Abdul-Hussin, R. S., 		Aljumaily, A. R., AND 		Awad, W.M..
" Design and Evaluation  for C02  Laser Focus System for use in Treating the Skin Diseases." <em>Ibn AL- Haitham Journal For Pure and Applied Science</em> [Online], Volume 21 Number 3 (23 September 2017)