1. Gulsoy , O. Ergun , L. Celik , I. Gulcan , E. , and Altung , T. , 2012 , Optical sorting applications on various minerals and coals. http://www.arber.com.tr/./absfilAbstractSubmissionFullContent272.pdf, 2nd November, 2012
2. Kgaka , M. , 2011 ,Efficiency of Commodus Optical Sorters on Gold Waste Rock Dumps, B.Tech. Thesis, Pretoria: Tshwane University of Technology (Unpublished) .
3. Study the effect of chromite ore properties on pelletisation process