Joni I, Ariyanto SV. THE INFLUENCE OF THE RATIO AND GRAIN SIZE OF THE NATURAL MINERAL SIO2 ON THE STRENGTH OF CaCO3 MIXED CONCRETE. phy [Internet]. 2024May1 [cited 2024Jul.3];6(2):97 - 104. Available from: https://ojs.unsulbar.ac.id/index.php/phy/article/view/3757