Kursunoglu, S. and Kaya, M. 2012. Recovery of Manganese from Spent Batteries Using Activated Carbon Powder as Reductant in Sulfuric Acid Solution. Asian Journal of Chemistry. 25, 4 (Nov. 2012), 1975–1980. DOI:https://doi.org/10.14233/ajchem.2013.132558.