1. Athens, L. Building an Emerald City: A guide to creating green building policies and programs. Washington, DC: Island Press; 2010.
2. Bell, DA, de-Shalit, A. The spirit of cities: Why the identity of a city matters in a global age. New Jersey: Princeton University Press; 2011.
3. Dinnie, K. City branding: Theory and cases. New York: Palgrave Macmillan; 2011.
4. Dreyer, N. Out of Africa, something old. Sunday Times Insight; September 24, 2017. p. 14.
5. Dubrow, M. 7 Top international Art Deco cities to visit in 2017. U.S. News & World Report; April 25, 2017. Retrieved August 8, 2017, from https://travel.usnews.com/features/7-top-international-art-deco-cities-to-visit-in-2017 .