1. Alvarez, A., Insunza, A. and Rivera, A., 1996. Hydrometallurgical process for the treatment of copper bearing ore, US Patent No. 5527382.
2. The use of a mineralogical data for production forecasting and troubleshooting in copper leach operations;Baum,1999
3. Sulfuric acid leaching of copper silicate ores;Cruz,1980
4. The Chemistry of Silica Solubility, Polymerization, Colloid and Surface Properties and Biochemistry;Iler,1979
5. Process mineralogy of Manto Verde, Chile;Lindsay,1994