Ibrahim, Ibrahim, Ika Sulianti, Dita Putri Andini, Riandi Sentosa, MM Lanny W Panjaitan, and Lukas Lukas. “Evaluation of Concrete Compressive Strength With Coral Stone As a Fine Aggregate Replacement”. CIVED 11, no. 3 (September 30, 2024): 1091–1097. Accessed November 7, 2024. https://cived.ppj.unp.ac.id/index.php/CIVED/article/view/672.