“CHARACTERISTICS OF GEOPOLYMER USING RICE STRAW ASH, FLY ASH AND LATERITE SOIL AS ECO-FRIENDLY MATERIALS” (2020) International Journal of Geomate, 19(73), pp. 77–81. Available at: https://geomatejournal.com/geomate/article/view/1774 (Accessed: 5 October 2026).