Lianasari, A. E., and H. P. Natio. “Influence of Borax Addition on Setting Behavior and Mechanical Properties of Class F Fly Ash Geopolymer Concrete”. Journal of Applied Materials and Technology, vol. 7, no. 2, Feb. 2026, pp. 66-73, doi:10.31258/Jamt.7.2.66-73.