TURKMEN, Cafer; SUNGUR, Ali. Influence of Humic Acid on Availability of Zn, Cu, Mn, Fe in Soils. Asian Journal of Chemistry, [S. l.], v. 26, n. 13, p. 3977–3980, 2014. DOI: 10.14233/ajchem.2014.16234. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/26_14_47. Acesso em: 23 jul. 2024.