Gaya APA
Wook, Park Sang, Irene Christin. (2009).
Why?: Happy Math 2 .
Jakarta:
PT Elex Media Komputindo.
Gaya Chicago
Wook, Park Sang, Irene Christin.
Why?: Happy Math 2.
Jakarta:
PT Elex Media Komputindo,
2009.
Text.
Gaya MLA
Wook, Park Sang, Irene Christin.
Why?: Happy Math 2.
Jakarta:
PT Elex Media Komputindo,
2009.
Text.
Gaya Turabian
Wook, Park Sang, Irene Christin.
Why?: Happy Math 2.
Jakarta:
PT Elex Media Komputindo,
2009.
Print.