Gaya APA

Heurdawaty, S, K, L, R. (2018). Forward an English Course for Vocational School Students Grade XI Kurikulum 2013 . Jakarta: Erlangga.

Gaya MLA

Heurdawaty, Shyla, K., Lande,, Ramon. "Forward an English Course for Vocational School Students Grade XI Kurikulum 2013". Jakarta: Erlangga, 2018. Text.