Gaya APA

Astuti, S, K, L, E, M. (2016). Forward An English Course For Vocational School Students Grade X (Pertama). Jakarta: Penerbit Erlangga.

Gaya MLA

Astuti, Shyla, K., Lande,, Eka, Mulya. "Forward An English Course For Vocational School Students Grade X". Pertama Jakarta: Penerbit Erlangga, 2016. Text.