APA (7th ed.) Citation

Faria, S., & Portela, M. (2016). Student Performance in Mathematics using PISA-2009 data for Portugal.

Chicago Style (17th ed.) Citation

Faria, Susana, and Maria Portela. Student Performance in Mathematics Using PISA-2009 Data for Portugal. 2016.

MLA (8th ed.) Citation

Faria, Susana, and Maria Portela. Student Performance in Mathematics Using PISA-2009 Data for Portugal. 2016.

Warning: These citations may not always be 100% accurate.