Gaya APA
Teo - Gwan Wai Lan,...dkk. (2003).
Science 4B : Activity Book .
Singapore:
Federal.
Gaya Chicago
Teo - Gwan Wai Lan,...dkk.
Science 4B : Activity Book.
Singapore:
Federal,
2003.
Text.
Gaya MLA
Teo - Gwan Wai Lan,...dkk.
Science 4B : Activity Book.
Singapore:
Federal,
2003.
Text.
Gaya Turabian
Teo - Gwan Wai Lan,...dkk.
Science 4B : Activity Book.
Singapore:
Federal,
2003.
Print.