Exploring the Use of Metakaolin and Portland Pozzolana Cement for Concrete Sustainability. Indian Journal of Engineering and Materials Sciences (IJEMS), [S. l.], v. 30, n. 6, p. 862, 2023. DOI: 10.56042/ijems.v30i6.4536. Disponível em: https://or.niscpr.res.in/index.php/IJEMS/article/view/4536. Acesso em: 13 may. 2026.