A. F. Essa, A. Jadah, and N. Jerjack, “Effect of Water on Some Mechanical Properties for Gravel Particles/Polyester Composites”, Al-Nahrain J. Sci., vol. 17, no. 4, pp. 115–127, Jun. 2018, Accessed: May 22, 2026. [Online]. Available: https://mail.anjs.edu.iq/index.php/anjs/article/view/385