Extraction and bioavailability of heavy metals in response to the addition of sewage sludge to the soil . Scientia Agricola, [S. l.], v. 59, n. 3, p. 555–563, 2002. DOI: 10.1590/S0103-90162002000300022. Disponível em: https://revistas.usp.br/sa/article/view/21767.. Acesso em: 1 aug. 2024.