Electrochemical Behaviour of a Copper Electrode in Ammonium Sulfide Solution. Global Journal of Science Frontier Research, [S. l.], v. 12, n. B2, p. 1–7, 2012. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/411. Acesso em: 14 aug. 2026.