PREDICTING THE STRENGTH OF CEMENT MORTARS CONTAINING NATURAL POZZOLAN AND SILICA FUME USING MULTIVARIATE REGRESSION ANALYSIS. INTERNATIONAL JOURNAL OF GEOMATE [Internet]. 2021 Jun. 28 [cited 2026 Apr. 30];20(82):68-76. Available from: https://geomatejournal.com/geomate/article/view/157