“The Study of Concrete Mixture Planning With the Addition of Superplasticizer and the Use of Silica Fume As a Substitute of Cement”. Journal Dynamic Saint 5, no. 2 (October 30, 2020): 964–967. Accessed November 24, 2024. https://journals.ukitoraja.ac.id/index.php/dynamicsaint/article/view/1119.