A. Jawad, H., A. S. Jassim, and Y. B. Yousif. “CW-CO2 Laser Photoinitiated Polymerization of Methyl Methacrylate”. Journal of Education and Science (JES), vol. 23, no. 2, June 2010, pp. 24-36, doi:10.33899/edusj.2010.58234.