Yahya Kasim, Yasir. “Determination an Empirical Relation for the Bulk Etch Rate of CR-39 With Etching Time and Gamma Irradiation Dose”. Journal of Education and Science (JES) 23, no. 2 (June 1, 2010): 120–130. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23042.