et.al, K. S. (2021) “The activities of Geopolymer aggregate and Fly ash with different Grades of concrete M25, M30, & M40”, Turkish Journal of Computer and Mathematics Education (TURCOMAT), 12(3), pp. 3468–3475. Available at: https://turcomat.org/index.php/turkbilmat/article/view/1618 (Accessed: 6May2024).