Kadhim, Mustafa A., et al. “Sustainable Cement Mortar Using Rice Husk Ash and Solvent-Treated Expanded Polystyrene As Partial Replacements”. Kufa Journal of Engineering, vol. 17, no. 2, May 2026, pp. 346-61, https://doi.org/10.30572/2018/KJE/170220.