Mansur, Moh. Safi’i, dkk. “An Experiment of Shear Strength Reinforced Geopolymer Concrete Beam Based High-Calcium Fly Ash With Varian Shear Span-to-Depth Ratio ”. Journal of Civil Engineering, vol. 38, no. 3, Juli 2025, hlm. 139, doi:10.12962/j20861206.v38i03.7452.