Wimmer, N. (2012). Green energy for a billion poor: How Grameen Shakti created a winning model for social business. MCRE Verlag.
Lua i Stíl Chicago (17ú heag.)Wimmer, Nancy. Green Energy for a Billion Poor: How Grameen Shakti Created a Winning Model for Social Business. Vaterstetten: MCRE Verlag, 2012.
Lua MLA (8ú heag.)Wimmer, Nancy. Green Energy for a Billion Poor: How Grameen Shakti Created a Winning Model for Social Business. MCRE Verlag, 2012.
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