Gaya APA
Sudarwati, T, M. et al (2006).
Look Ahead Book 3 An English Course for Senior High School Students Year XII .
Jakarta:
Erlangga.
Gaya MLA
Sudarwati, Th., M.. et al.
"Look Ahead Book 3 An English Course for Senior High School Students Year XII".
Jakarta:
Erlangga,
2006.
Book.