Simaung, Nititron, Sumrerng Rukzon, and Prinya Chindaprasirt. 2021. “Effect of Temperature and Delay Time for Curing on Compressive Strength of Geopolymer Mortar Ground Fly Ash”. Rajamangala University of Technology Srivijaya Research Journal 13 (2):369-81. https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/240891.