Babiker, Mohammed, AND 		Elarabi, Salaheldin.
" The study of the variation effect in the percent of the fibers in the gradients of composite materials on the percentage of water absorption of concrete beams when using 20% from the weight of cement in concrete beams" <em>Gezira Journal of Engineering and Applied Sciences</em> [Online], Volume 17 Number 2 (15 June 2026)