Heavy metals extractability in a soil amended with sewage sludge . Scientia Agricola, [S. l.], v. 66, n. 5, p. 643–649, 2009. DOI: 10.1590/S0103-90162009000500009. Disponível em: https://revistas.usp.br/sa/article/view/22502.. Acesso em: 5 may. 2024.