B.J., O.; K. O., O. Compressive Strength of Volcanic Ash/Ordinary Portland Cement Laterized Concrete. Civil Engineering Dimension, [S. l.], v. 12, n. 1, p. 23-28, 2010. DOI: 10.9744/ced.12.1.23-28. Disponível em: https://ced.petra.ac.id/index.php/civ/article/view/17898. Acesso em: 6 may. 2021.