Gaya APA
Sistim pencernaan manusia. (2009).
:
Gasa Publishing.
Gaya Chicago
Sistim pencernaan manusia.
.
:
Gasa Publishing,
2009.
Text.
Gaya MLA
Sistim pencernaan manusia.
.
:
Gasa Publishing,
2009.
Text.
Gaya Turabian
Sistim pencernaan manusia.
:
Gasa Publishing,
2009.
Print.