Gaya APA
Sudarwati, ., Grace, E. (2007).
Look Ahead Book 3 " An English Course For Senior High School Students Year XII" : Science And Social Study Program (9).
Jakarta:
Erlangga.
Gaya MLA
Sudarwati, ., Grace, Eudia.
"Look Ahead Book 3 " An English Course For Senior High School Students Year XII" : Science And Social Study Program".
9
Jakarta:
Erlangga,
2007.
Text.