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APA-viite (7. p.)
Organisation for Economic Co-operation and Development, Programme for International Student Assessment, & ProQuest (Firm). (2004). Problem solving for tomorrow's world: First measures of cross-curricular competencies from PISA 2003. OECD.
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Chicago-viite (17. p.)
Organisation for Economic Co-operation and Development, Programme for International Student Assessment, ja ProQuest (Firm). Problem Solving for Tomorrow's World: First Measures of Cross-curricular Competencies from PISA 2003. Paris: OECD, 2004.
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MLA-viite (9. p.)
Organisation for Economic Co-operation and Development, et al. Problem Solving for Tomorrow's World: First Measures of Cross-curricular Competencies from PISA 2003. OECD, 2004.
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