Adi, A. K., Roni, K. A. and Ariyanto, E. (2025) “Optimization of Compressive Strength of K-350 Concrete with Sika Viscocrete-3115 N Superplasticizer Additive”, Engineering And Technology Journal, 10(8), pp. 6593–6599. doi: 10.47191/etj/v10i08.48.