“The Effect of Replacement of Natural Gravel with Recycled Aggregate on Concrete Compressive Strength” (2025) American Journal of Engineering , Mechanics and Architecture (2993-2637), 3(5), pp. 143–150. Available at: https://www.grnjournal.us/index.php/AJEMA/article/view/7666 (Accessed: 4 February 2026).