Ms. Gaddagolla Surekha, Prof. H. SudarsanaRao , Dr. Vaishali. G. Ghorpade. “Strength Properties of Concrete With Rice Husk Ash, Slag Sand and Marble Waste Aggregate ”. Design Engineering, Nov. 2021, pp. 854 -62, http://www.thedesignengineering.com/index.php/DE/article/view/7021.