Gaya APA
Choi, Yeol. (2010).
Why ? Environment .
Jakarta:
PT Elex Media Komputindo.
Gaya Chicago
Choi, Yeol.
Why ? Environment.
Jakarta:
PT Elex Media Komputindo,
2010.
Text.
Gaya MLA
Choi, Yeol.
Why ? Environment.
Jakarta:
PT Elex Media Komputindo,
2010.
Text.
Gaya Turabian
Choi, Yeol.
Why ? Environment.
Jakarta:
PT Elex Media Komputindo,
2010.
Print.