Bibliografia

Soares, I., & Amorim, R. (2021) English for social sciences (B1) Soares, I., & Amorim, R. (2021).English for social sciences (B1). Edições 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.