Application of six sigma in the case study of a phosphate mine - Araxá-MG. Research, Society and Development, [S. l.], v. 9, n. 12, p. e21491210839, 2020. DOI: 10.33448/rsd-v9i12.10839. Disponível em: https://rsdjournal.org/rsd/article/view/10839. Acesso em: 5 dec. 2025.