Yabefa, B., Ufuoma, G. O. and Jonathan, B. J. (2023) “Application of Agro-Wastes in Geopolymer Concrete Production. (Periwinkle Shell Ash (PSA) as Case Study)”, Rivers State Univeristy Journal of Biology & Applied Sciences, 2(1). Available at: http://jbasjournals.com/index.php/rsujbas/article/view/27 (Accessed: 16 September 2024).