PERDUR, N.; NELLIKALAYA, G. B.; GOPALAKRISHNAYYA, C. K. Ammonium oxalate as a masking agent for the complexometric determination of manganese(II). Vietnam Journal of Chemistry, [S. l.], v. 53, n. 2, p. 151–155, 2015. DOI: 10.15625/0866-7144.2015-00105. Disponível em: https://vjs.ac.vn/index.php/vjchem/article/view/0866-7144.2015-00105. Acesso em: 28 mar. 2024.