Gaya APA

Astuti, S, K, L, D, E, M. (2018). Forward An English Course for Vocational School Students Grade XI (Kurikulum 2013 KI-KD 2017). Jakarta: Erlangga.

Gaya MLA

Astuti, Shyla, K., Lande, Dan, Eka, Mulya. "Forward An English Course for Vocational School Students Grade XI". Kurikulum 2013 KI-KD 2017 Jakarta: Erlangga, 2018. Text.