“Influence of Mineral and Chemical Admixtures in Ordinary Portland Cement on Physical and Mechanical Properties”. International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695 IJERAT, vol. 3, no. 10, Oct. 2017, pp. 26-34, https://doi.org/10.7324/IJERAT.2017.3139.