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Lua i Stíl Chicago (17ú heag.)Subramanian, Uma, agus Matthias Matthijs. Can Sub-Saharan Africa Leap into Global Network Trade? Washington, D.C: World Bank, 2007.
Lua MLA (9ú heag.)Subramanian, Uma, agus Matthias Matthijs. Can Sub-Saharan Africa Leap into Global Network Trade? World Bank, 2007.
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