Alaa H. J. Al-Rkaby, Ahmed Katea. “Improvement the Strength Characteristics of Loose Sandy Soil Using Sustainable Geopolymer”. Mathematical Statistician and Engineering Applications 72, no. 1 (February 13, 2023): 660–667. Accessed July 3, 2024. https://philstat.org/index.php/MSEA/article/view/1975.