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Leverkusen: Verlag Barbara Budrich, 2022
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World Bank, Washington, DC, 2004
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World Bank, Washington, DC, 2009
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Princeton, NJ: Princeton University Press, [2021] ; [Online-Ausgabe]
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World Bank, Washington, DC, 2001
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World Bank, Washington, DC, 2014
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Maad Rayan Publishing Company, 2023
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[S.l.]: SSRN, [2021]
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Centre for Evaluation in Education and Science (CEON/CEES), 2015
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SAGE Publications, 2012
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Elsevier BV, 2020