Gaya APA
Why? Happy Math 4. (2009).
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Why? Happy Math 4.
.
Jakarta:
Elex Media Komputindo,
2009.
Printed Book.
Gaya MLA
Why? Happy Math 4.
.
Jakarta:
Elex Media Komputindo,
2009.
Printed Book.
Gaya Turabian
Why? Happy Math 4.
Jakarta:
Elex Media Komputindo,
2009.
Printed Book.