Gaya APA
Why? Happy Math 2. (2009).
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Why? Happy Math 2.
.
Jakarta:
Elex Media Komputindo,
2009.
Printed Book.
Gaya MLA
Why? Happy Math 2.
.
Jakarta:
Elex Media Komputindo,
2009.
Printed Book.
Gaya Turabian
Why? Happy Math 2.
Jakarta:
Elex Media Komputindo,
2009.
Printed Book.