Gaya APA
Cho, Young Seon. (2010).
WHY: Happy Science .
Jakarta:
PT ELEX MEDIA KOMPUTINDO.
Gaya Chicago
Cho, Young Seon.
WHY: Happy Science.
Jakarta:
PT ELEX MEDIA KOMPUTINDO,
2010.
Text.
Gaya MLA
Cho, Young Seon.
WHY: Happy Science.
Jakarta:
PT ELEX MEDIA KOMPUTINDO,
2010.
Text.
Gaya Turabian
Cho, Young Seon.
WHY: Happy Science.
Jakarta:
PT ELEX MEDIA KOMPUTINDO,
2010.
Print.