1. The Development of a direct reduction and leaching process for ilmenite upgrading;Bracanin,1972
2. Titanium dioxide production;Chandler Limited,1977
3. Beach Mineral Sands and Silicon Sands of Ceylon-Pamphlet (5);Geological Survey of Ceylon,1970
4. Mineral Resources of Sri Lanka;Herath;Geol. Surv. Dep., Econ. Bull.,1980
5. Report on the Development of the Beach Mineral Industry of Ceylon;Ministry of Industries and Fisheries,1969