Zinab Mubark Issa, and Somaya Massoud Abdo. “Effect of Adding Sand on Cement Mixtures: An Experimental Investigation of Compressive Strength Using Portland Cement and Nalut Sand”. Libyan Journal of Contemporary Academic Studies 3, no. 2 (December 20, 2025): 160–177. Accessed November 9, 2026. https://ljcas.ly/index.php/ljcas/article/view/252.