Gaya APA
A., S., Sukirman, . (2009).
Biology [Jilid 2]: for Junior High School Year VIII (Cet. 1.--).
Jakarta:
Yudistira.
Gaya MLA
A., Suyitno., Sukirman, .
"Biology [Jilid 2]: for Junior High School Year VIII".
Cet. 1.--
Jakarta:
Yudistira,
2009.
Text.