Gaya APA
Cho, Young-Sun. (2010).
Why? happy science 1 (1).
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Cho, Young-Sun.
Why? happy science 1.
1
Jakarta:
Elex Media Komputindo,
2010.
Text.
Gaya MLA
Cho, Young-Sun.
Why? happy science 1.
1
Jakarta:
Elex Media Komputindo,
2010.
Text.
Gaya Turabian
Cho, Young-Sun.
Why? happy science 1.
1
Jakarta:
Elex Media Komputindo,
2010.
Print.