Wong, John Kok Hee, Sien Ti Kok, and Soon Yee Wong. “Fibers, Geopolymers, Nano and Alkali-Activated Materials for Deep Soil Mix Binders”. Civil Engineering Journal 6, no. 4 (April 1, 2020): 830–847. Accessed September 21, 2025. https://civilejournal.org/index.php/cej/article/view/2099.