1. Werbach, Adam. Strategy for Sustainability: a Business Manifesto. Boston, Mass.: Harvard Business, 2009. Print.
2. Lynn R. Kahle, Eda Gurel-Atay, Eds (2008). Communicating Sustainability for the Green Economy. New York: M.E. Sharpe. ISBN 978-0-7656-3680-5.
3. Schaltegger, S. & Sturm, A. 1998. Eco-Efficiency by Eco-Controlling. Zürich: vdf.
4. Smith, Charles; Rees, Gareth (1998). Economic Development, 2nd edition. Basingstoke: Macmillan. ISBN 0-333-72228-0.