1. C. Walker et al., “Nickel Laterite Rotary Kiln-Electric Furnace Plant of the Future”, Proceedings of COM 2009, Sudbury, Canada, August 23-26, 2009. 19
2. Silicon and Ferrosilicon: Global Industry Markets and Outlook , (Thirteenth edition, Roskill Information Services Ltd., 2011), ISBN 978 0 86214 573 6
3. N.A. Barcza R.A. Featherstone “The growth of ferro-alloy production in South Africa”, Ferroaleaciones '82, ILAFA, 1982. 25
4. C.N. Harman N.S.S. Rama Rao “Indian Ferro Alloy Industry - Present Status and Future Outlook”. Indian Institute of Metals. 18. http://www.iim-delhi.com/upload_events/FerroAlloys_FACOR.pdf
5. J. Chirasha “Ferrochrome smelting and smelting capacity investment in Zimbabwe', Southern African Pyrometallurgy 2011, Southern African Institute of Mining and Metallurgy, Johannesburg, 6-9 March, 2011. 77-82