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Vellesa (5)
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0 - Science and knowledge. Organization. Computer science. Information. Documentation. Librarianship. Institutions. Publications (4)
30 -Social Sciences theories and methodologies. Sociography. Gender studies (4)
311 - Statistics as a science. Statistical theory (4)
336 - Finance (4)
372 - Kinds of school providing kindergarten and elementary education (4)
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