Samsudin, Muhammad Hasnolhadi, et al. “Mechanical Properties of Gypsum-Activated Ternary Hybrid Geopolymer Mortar Cured in Ambient Conditions”. Semarak International Journal of Mechanical Precision Engineering, vol. 1, no. 1, May 2025, pp. 11-19, doi:10.37934/sijmpe.1.1.1119a.