HAWA, A. Strength and microstructural of geopolymer mortar from palm oil ash containing alumina powder with palm oil clinker aggregate. Engineering and Applied Science Research, [S. l.], v. 49, n. 6, p. 731–743, 2022. Disponível em: https://ph01.tci-thaijo.org/index.php/easr/article/view/249237. Acesso em: 1 may. 2024.