Chengula DDH, J. Msambichaka PJ, Middendorf PB. Synthetic Determination of Specific Density, Specific Surface Area and Particle Size Distribution of Cementitious Powder Materials. IJSBAR. 2018;41(2):177-189. Accessed October 30, 2025. https://gssrr.org/JournalOfBasicAndApplied/article/view/9303