Power is Everything: The Costs of Ethiopia’s Ambitious Pursuit of Hydro-Electrical Power
http://hrbrief.org/2011/04/power-is-everything-the-costs-of-ethiopia%E2%80%99s-ambitious-pursuit-of-hydro-electrical-power/
Sam Effron
File:Addis Abeba06 (Sam Effron).jpg - 维基百科,自由的百科全书 http://zh.wikipedia.org/wiki/File:Addis_Abeba06_(Sam_Effron).jpg
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