Parea R. Rangan, Rita Irmawaty, A. Arwin Amiruddin, and Bambang Bakri. “CHARACTERISTICS OF GEOPOLYMER USING RICE STRAW ASH, FLY ASH AND LATERITE SOIL AS ECO-FRIENDLY MATERIALS”. GEOMATE Journal 19, no. 73 (September 30, 2020): 77–81. Accessed April 24, 2024. https://geomatejournal.com/geomate/article/view/1774.