Gaya APA

Astuti, E, M., Ilham, A, G. (2016). Mandiri practise your english competence for vocational school grade X : kurikulum 2013 . Jakarta: Erlangga.

Gaya MLA

Astuti, Eka, Mulya., Ilham, Agan, Gupta. "Mandiri practise your english competence for vocational school grade X : kurikulum 2013". Jakarta: Erlangga, 2016. Text.