Unruh, Gregory, and Shiva Kumar Srinivasan. “Earth, Inc: Using Nature’s Rules to Build Sustainable Profits”. Journal of Economics and Behavioral Studies 1, no. 1 (December 15, 2010): 49–51. Accessed October 25, 2026. https://amhinternational.com/jebs/article/view/2169-earth-inc-using-natures-rules-to-build-sustainable-profits.