WASET
    Nwakaego C. Onyenokporo,  Supplementary Cementitious Materials as Sustainable Partial Replacement for Cement in the Building Industry.   journal   = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2022, vol. 183(3). 74 - 84
    [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/10012456.