SHARMA, R.; SHARMA, D. K. A new method in estimation of total hexavalent chromium in Portland pozzolan cement. Materiales de Construcción, [S. l.], v. 67, n. 326, p. e116, 2017. DOI: 10.3989/mc.2017.03116. Disponível em: https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2178. Acesso em: 27 apr. 2024.