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Written by: Robert Marquand, The Christian Science Monitor, 15 August 2000

Written by: Eric Jaffe, The Atlantic Cities, 22 November 2011

Written by: Adam Werbach, Guardian UK, 29 November 2011

Written by: Lucas Barasa, Daily Nation (Kenya), 18 October 2011

Written by: Neil Peirce, Houston Chronicle, 22 November 2007

Written by: Gwenn Webber, A|N Blog, 17 October 2011

Written by: Benjamin Bradlow (SDI), appeared in SA Affordable Housing Magazine, September 2011

Written by: Michael Tlhakudi and Ntwaagae Seleka, The Sowetan, 18 November 2011

Written by: Stephanie Nolen, The Globe & Mail, 1 April 2012