Bibliografia

Soares, I., & Amorim, R. (2021) English for Social Sciences (B1). Soares, I., & Amorim, R. (2021). English for Social Sciences (B1). ISCSP.

Vince, M. (2009) English Grammar In Context - Intermediate. Vince, M. (2009). English Grammar In Context - Intermediate. Macmillan Education.
McCarthy, M., & O'Dell, F. (2013) English Vocabulary in Use - Advanced. McCarthy, M., & O'Dell, F. (2013). English Vocabulary in Use - Advanced. Cambridge University Press.
Hornby, A.S. (2010) Oxford Advanced Learner's Dictionary (8th ed). Hornby, A. S. (2010). Oxford Advanced Learner's Dictionary (8th ed). Oxford University Press.