Heidari, Ali, Shiva Tavakoli, and Davoud Tavakoli. “Reusing Waste Ceramic and Waste Sanitary Ware in Concrete As Pozzolans With Nano-Silica and Metakaolin”. International Journal of Sustainable Construction Engineering and Technology 10, no. 1 (August 26, 2019). Accessed July 30, 2021. https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/4863.