Gaya APA

Astuti, S, K, L, M. (2017). FORWARD AN ENGLISH,COURSE FOR VOCATIONAL SCHOOL STUDENTS GRADE XI (CET. 1). JAKARTA: Penerbit Erlangga.

Gaya MLA

Astuti, Shyla, K., Lande,Eka, Mulya. "FORWARD AN ENGLISH,COURSE FOR VOCATIONAL SCHOOL STUDENTS GRADE XI". CET. 1 JAKARTA: Penerbit Erlangga, 2017. Text.