Tanriverdi, Mehmet, and Emre Ozturk. “Use of Sodium Metabisulphide As An Alternative Depresant in Selective Flotation of Lead and Copper”. Asian Journal of Chemistry 24, no. 8 (April 17, 2012): 3579–3581. Accessed April 5, 2025. https://asianpubs.org/index.php/ajchem/article/view/9399.