ZALBA, P.; QUIROGA, A. R. Fluvic acid carbon as a dignostic feature for agricultural soil evaluation. Semiárida, [S. l.], v. 10, n. 2, p. 75, 2020. Disponível em: https://ojs.unlpam.edu.ar/index.php/semiarida/article/view/4734. Acesso em: 21 sep. 2024.