(2005). PISA 2003: Technical report. Paris: Organisation for Economic Co-operation and Development (OECD).
Chicago Style aipamenaPISA 2003: Technical Report. Paris: Organisation for Economic Co-operation and Development (OECD), 2005.
MLA aipamenaPISA 2003: Technical Report. Paris: Organisation for Economic Co-operation and Development (OECD), 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.