Fajemilua, O., and O. . Aderinola. “Multi-Criteria Evaluation of XL-Terrasil and Metakaolin Geopolymer for Subgrade Improvement in Rural Roads of Ondo State, Nigeria”. International Journal of Engineering and Applied Physics, vol. 5, no. 2, May 2025, pp. 1205-13, https://ijeap.org/ijeap/article/view/252.