MUTHUSELVI, R.; VIGNESWARI, K. Spectrophotometric Determination of Copper(II) Using Nicotinohydroxamic Acid. Asian Journal of Chemistry, [S. l.], v. 24, n. 4, p. 1579–1582, 2011. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/8863. Acesso em: 9 jul. 2024.