Zuliani, Vanessa, Rafaela Boni Serata, and Juliana de Carvalho Izidoro. “Determination of Soluble Hexavalent Chromium in Samples of Portland Cement from Brazilian Cement Manufacturers”. Journal of Applied Materials and Technology 3, no. 2 (December 12, 2022): 7–12. Accessed April 20, 2026. https://jamt.icancee.org/index.php/jamt/article/view/67.