PISA 2012 results. what students know and can do / Volume I, Student performance in mathematics, reading and science :

Furkejuvvon:
Bibliográfalaš dieđut
Searvvušdahkki: Organisation for Economic Co-operation and Development (Dahkki)
Materiálatiipa: Elektrovnnalaš E-girji
Giella:eaŋgalasgiella
Almmustuhtton: Paris, France : OECD Publishing, 2014.
Preanttus:Revised edition.
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