ANĐELKOVIĆ, T.; PEROVIĆ, J.; BLAGOJEVIĆ, S.; PURENOVIĆ, M.; NIKOLIĆ, R.; BOJIĆ, A.; ANĐELKOVIĆ, D. Acidity of humic acid related to its oxygen-containing functional groups. Macedonian Journal of Chemistry and Chemical Engineering, [S. l.], v. 25, n. 2, p. 131–137, 2006. DOI: 10.20450/mjcce.2006.297. Disponível em: https://mjcce.org.mk/index.php/MJCCE/article/view/297. Acesso em: 30 apr. 2024.