Agashua, L. O., Arum, C., Oluyemi-Ayibiowu, B. D., & Ikumapayi, C. M. (2024). A systematic review of geopolymer materials: innovations, prevailing constraints and resolutions. SINERGI, 28(3), 473–488. https://doi.org/10.22441/sinergi.2024.3.004