Manganese ores of the Ghoriajhor-Monmunda area, Sundergarh District, Orissa, India: geochemical evidence for a mixed Mn source,
Nicholson, K., V. K. Nayak, J. K. Nanda (1997) (1997),
Geological Society of London, Special Publication, 119 p. 117–121,
10.1144/GSL.SP.1997.119.01.08.