Nurdeen M. Altwair و Heba M. Elghwari 2024. Influence of Waste Polystyrene Foam on the Engineering Properties of Concrete Made from Local Materials . Bani Waleed University Journal of Humanities and Applied Sciences. 8, 3 (2024), 68–79. DOI:https://doi.org/10.58916/jhas.v8i3.117.