Gaya APA
Badrika, I, W., Bates, N. (2007).
Real Time 3: An Interactive English Course For Junior High School Students Year Ix .
Jakarta:
Erlangga.
Gaya MLA
Badrika, I, Wayan., Bates, Nina.
"Real Time 3: An Interactive English Course For Junior High School Students Year Ix".
Jakarta:
Erlangga,
2007.
Text.