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Wuppertal: R. Brockhaus Verlag, 1984
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World Bank, Washington, DC, 2011
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Geneve: International Organization for Standardization, 2022
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Geneve: International Organization for Standardization, 2002
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Geneve: International Organization for Standardization, 2019
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Geneve: International Organization for Standardization, 2014
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Washington, DC, 2013
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Geneve: International Organization for Standardization, 2024
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Washington, DC, 2012
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World Bank, Washington, DC, 2014
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Princeton, NJ: Princeton University Press, [2021]
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2023
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World Bank, Washington, DC, 2010
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World Bank, Washington, DC, 2009
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World Bank, Washington, DC, 2014
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World Bank, Washington, DC, 2004
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Geneve: International Organization for Standardization, 2017
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Geneve: International Organization for Standardization, 2016
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Geneve: International Organization for Standardization, 2011
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Geneve: International Organization for Standardization, 2009