“EVALUATING STRENGTH CHARACTERISTICS OF FLY ASH CONCRETE WITH DIFFERENT GRADES OF CONCRETE WITH NATURAL AND RECYCLED AGGREGATE” (2022) International Journal of Food and Nutritional Sciences, 11(8), pp. 1921–1932. Available at: https://www.ijfans.org/index.php/Journal/article/view/8410 (Accessed: 10 August 2026).