Joni, I., & Ariyanto, S. V. (2024). THE INFLUENCE OF THE RATIO AND GRAIN SIZE OF THE NATURAL MINERAL SIO2 ON THE STRENGTH OF CaCO3 MIXED CONCRETE. PHYDAGOGIC : Jurnal Fisika Dan Pembelajarannya, 6(2), 97 - 104. https://doi.org/10.31605/phy.v6i2.3757