Gaya APA
Cho, Young-Seon. (2011).
WHY? Future Science .
jakarta:
PT Elex Media Komputindo.
Gaya Chicago
Cho, Young-Seon.
WHY? Future Science.
jakarta:
PT Elex Media Komputindo,
2011.
Text.
Gaya MLA
Cho, Young-Seon.
WHY? Future Science.
jakarta:
PT Elex Media Komputindo,
2011.
Text.
Gaya Turabian
Cho, Young-Seon.
WHY? Future Science.
jakarta:
PT Elex Media Komputindo,
2011.
Print.