Hardjito, D., Wallah, S. E., Sumajouw, D. M., & Rangan, B. (2004). FACTORS INFLUENCING THE COMPRESSIVE STRENGTH OF FLY ASH-BASED GEOPOLYMER CONCRETE. Civil Engineering Dimension, 6(2), pp. 88-93. https://doi.org/10.9744/ced.6.2.pp. 88-93