1. Davenport , W.G.L. et al., Extractive Metallurgy of Copper (4th Edition). Chemical, Petrochemical & Process, (2002), Elsevier, 1-452
2. Imris , I. Cobalt distribution in Rokana smelter. Transactions of the Institution of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy , (1982), 91, p. C153-C161
3. Recovery of cobalt from slag in a DC arc furnace at Chambishi, Zambia.;Jones;Journal of The South African Institute of Mining and Metallurgy,2002
4. FactSage thermochemical software and databases.;Bale;Calphad: Computer Coupling of Phase Diagrams and Thermochemistry,2002
5. Turkdogan , E.T. Physical chemistry of high temperature technology, ( Academic Press, 1980)