Gaya APA
dkk, T, M, S. (2007).
Look Ahead An English Course For Senior High School Students Year X .
Jakarta:
Penerbit Erlangga.
Gaya MLA
dkk, Th., M., Sudarwati.
"Look Ahead An English Course For Senior High School Students Year X".
Jakarta:
Penerbit Erlangga,
2007.
Text.