Utilization of palm oil fuel ash in concrete: a review. Journal of Civil Engineering and Management, [S. l.], v. 17, n. 2, p. 234–247, 2011. DOI: 10.3846/13923730.2011.574450. Disponível em: https://journals.vilniustech.lt/index.php/JCEM/article/view/5153. Acesso em: 9 may. 2025.