Fransisco V, Firdaus F. The Effect of Fineness of Segabai Rice Husk Ash PCC Cement Substitution in Concecrete Making . ARRUS J. Eng. Tech. [Internet]. 2025 Jun. 10 [cited 2026 May 13];5(1):1-10. Available from: https://journal.arrus.id/index.php/jetech/article/view/3690