1. Anonymous, 1982. The state of India's environment. A Citizen Report. Centre for Science and Environment, New Delhi.
2. Anonymous, 1985. Towards a perspective on energy demand and supply in India. Advisory Board on Energy, Govt. of India, New Delhi.
3. Anonymous, 1999. State of Forest Report. Published by Forest Survey of India, Ministry of Environment and Forests, Govt. of India, p.113.
4. Anonymous, 2000a. Wastelands Atlas of India. Published by Ministry of Rural Development, Department of Land Resources, Govt. of India, New Delhi, India, p. 81.
5. Anonymous, 2000b. Basic statistics of North Eastern Region. Published by North Eastern Council, Ministry of Home Affairs, Govt. of India, p. 297.