E. Juesmin, I. Satyarno, S. Siswosukarto, R. D. Nawangsasi, and M. H. Taufiq, “The Application of Alkali Activator and Admixture for High Early Concrete Compressive Strength with GGBFS Substitution”, inersia, vol. 21, no. 2, pp. 260–269, Jan. 2026.