Gaya APA
Biology. (2013).
New York:
Mc Graw-Hill Education.
Gaya Chicago
Biology.
.
New York:
Mc Graw-Hill Education,
2013.
Buku.
Gaya MLA
Biology.
.
New York:
Mc Graw-Hill Education,
2013.
Buku.
Gaya Turabian
Biology.
New York:
Mc Graw-Hill Education,
2013.
Buku.