Gaya APA
Sumarwan, . et al (2006).
Bilingual Biology Science for Junior High School 2 .
Jakarta, Indonesia:
Penerbit Erlangga.
Gaya MLA
Sumarwan, . et al.
"Bilingual Biology Science for Junior High School 2".
Jakarta, Indonesia:
Penerbit Erlangga,
2006.
Text.