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London: Springer Science and Business Media LLC, 2020
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Centre for Evaluation in Education and Science (CEON/CEES), 2011
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National Library of Serbia, 2002
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Centre for Evaluation in Education and Science (CEON/CEES), 2021
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2010
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Springer, 2012
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Springer Science and Business Media LLC, 2012
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National Library of Serbia, 2007
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Centre for Evaluation in Education and Science (CEON/CEES), 2021
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National Library of Serbia, 2015
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Springer Science and Business Media LLC, 2014
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The Turkish Journal of Pediatrics, 2021
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Walter de Gruyter GmbH, 2020
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Walter de Gruyter GmbH, 2020
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Springer Science and Business Media LLC, 2014
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Springer Science and Business Media LLC, 2011
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Centre for Evaluation in Education and Science (CEON/CEES), 2011
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Centre for Evaluation in Education and Science (CEON/CEES), 2011
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Springer Science and Business Media LLC, 2011
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Springer Science and Business Media LLC, 2020