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[S.l.]: SSRN, [2016]
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[S.l.]: SSRN, [2016]
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Washington, DC: World Bank, Office of the Vice President, Development Economics, [1995] ; Online-Ausg.
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Washington, DC: World Bank, East Asia Pacific Regional Office, Office of the Regional Vice President, [1996] ; Online-Ausg.
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Informa UK Limited, 1999
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American Public Health Association, 2009