Salihu, C. H., A. E. Abalaka, R. A. Lafiya-Araga, B. J. Olawuyi, and I. Kariim. “Strength Properties and Microstructural Characterization of Metakaolin Geopolymer Concrete Synthsized at Ambient Temperature.”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 17, no. 3, Sept. 2021, pp. 389-02, https://www.azojete.com.ng/index.php/azojete/article/view/452.