Mahmoud, Akram S., Ganjeena J. Khoshnaw, and Faten I. Mahmood. 2017. “Engineering and Microstructures Characteristics of Low Calcium Fly Ash Based Geopolymer Concrete”. EURASIAN JOURNAL OF SCIENCE AND ENGINEERING 2 (2): 27-39. https://doi.org/10.23918/eajse.v2i2p27.