1.	Ecosophy.net
2.	Guha Ramachandra & Martinezer Alier, J., Varities of Environmentalism: Essays North and South, Earthscan Publication Limited Ltd, 1997.
3.	Mohapatra, P. K., Ethics and Society- An Essay in Applied Ethics, Concept Publishing Company, New Delhi, 2008.
4.	Naess, Arne, The Shallow and the Deep, Long-Range Ecology Movement,
5.	Nayak, G. C. & Bagchi, K., Ed., philosophical Appraisal, Humanist Philosophical foundation, 2010.
6.	Rolston, Holmes, Environmental Ethics: duty to the values in the natural world, Temple University Press, Philadelphia, 1988.
7.	Singer, Peter, A Companion to Ethics, Environmental Ethics, Elliot Robert, Blackwell, London, 1991.
8.	Singer, Peter, Practical Ethics, Cambridge University Press, 2011.