Arthika, J., C. Venkatasubramanian, D. Muthu, N. P Asrani, and R. Gayathri. “Utilization of Cow-Dung Ash, Granite Powder and Marble Stone to Enhance Strength of Concrete”. International Journal of Engineering & Technology, vol. 7, no. 3.12, July 2018, pp. 168-70, doi:10.14419/ijet.v7i3.12.15911.