1. Indian Minerals Yearbook, Indian bureau of Mines (2014).
2. Sarma J, Rajkhowa S, Sarma N, and Mahiuddin S, Sci Cult 77 (2011) 11.
3. Mohanty J K, Jena M S, and Paul A K, J Miner Mater Charact Eng 11 (2012)1133.
4. Roy S, and Das A, in Proceedings of the International Seminar on Mineral Processing Technology, Chennai, India (2006) 476.
5. Wills B A, and Napier-Munn T, Mineral Processing Technology, Elsevier Science &Technology Books (2006).