Muttaqin, S. A., S. Subari, B. D. Erlangga, and H. Aliyah. 2024. “Fly Ash and Ceramic Residue Based Geopolymer Mortars”. Journal of Applied Research and Technology 22 (2):189-96. https://doi.org/10.22201/icat.24486736e.2024.22.2.2225.