Gambo, G., K. Ibrahim, A. Aliyu, A. Ibrahim, and H. Abdulsalam. “PERFORMANCE OF METAKAOLIN BASED GEOPOLYMER CONCRETE AT ELEVATED TEMPERATURE”. Nigerian Journal of Technology, vol. 39, no. 3, June 2020, pp. 732-7, https://nijotech.com/index.php/nijotech/article/view/2355.