MÄKITIE, O. Aluminium, extractable from soil samples by the acid ammonium acetate soil-testing method. Agricultural and Food Science, [S. l.], v. 40, n. 2, p. 54–59, 1968. DOI: 10.23986/afsci.71699. Disponível em: https://journal.fi/afs/article/view/71699. Acesso em: 23 nov. 2024.