1. The causes of deforestation in developing countries;Allen;Annals of Association of American Geographers.,1985
2. J.R. Eriksson, (1979). Energy, environment, and forestry in Sri Lanka: Some major issues. Paper presented in US AID Asia Bureau Conference on Energy, Forestry and Environment Manila
3. FAO Production Year Book, FAO;FAO,1981
4. The changing atmosphere;Graedel;Scientific American,1989
5. India's Forests 1980 Compiled by Central Forestry Commission, Ministry of Agriculture (Forestry Division) Govt. of India.