Abd Mohammed, Alaa. “THE EXPERIMENTAL STUDY AND STATISTICAL EVALUATION OF THE WEAR AND HARDNESS OF EPOXY REINFORCED WITH NATURAL MATERIALS”. Journal of Engineering and Sustainable Development 20, no. 3 (May 1, 2016): 14–24. Accessed April 19, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/626.