UPPAL, H. .; SINGH, M. Studies in the effect of admixtures of cement concrete mixes “Lissopol N”. Materiales de Construcción, [S. l.], v. 5, n. 065, p. 41–43, 1955. DOI: 10.3989/mc.1955.v05.i065.2519. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2519. Acesso em: 10 may. 2024.