KAROLINA, Rahmi; SOFRAN, Muhammad Abdany; HANDANA, M.A.P; SYAHRIZAL; SIREGAR, Riza Inanda. Geopolymer Concrete Made From Volcanic Ash of Mount Sinabung. International Journal of Integrated Engineering, [S. l.], v. 12, n. 1, p. 315–320, 2020. Disponível em: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/5732.. Acesso em: 3 jul. 2024.