Lua APA (7ú heag.)

Programme for International Student Assessment, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2005). PISA 2003 data analysis manual: SAS users. OECD.

Lua i Stíl Chicago (17ú heag.)

Programme for International Student Assessment, Organisation for Economic Co-operation and Development, agus ProQuest (Firm). PISA 2003 Data Analysis Manual: SAS Users. Paris, France: OECD, 2005.

Lua MLA (9ú heag.)

Programme for International Student Assessment, et al. PISA 2003 Data Analysis Manual: SAS Users. OECD, 2005.

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