Gaya APA
The Billionaire Codes. (2013).
Jakarta:
Gramedia Pustaka Utama.
Gaya Chicago
The Billionaire Codes.
.
Jakarta:
Gramedia Pustaka Utama,
2013.
Printed Book.
Gaya MLA
The Billionaire Codes.
.
Jakarta:
Gramedia Pustaka Utama,
2013.
Printed Book.
Gaya Turabian
The Billionaire Codes.
Jakarta:
Gramedia Pustaka Utama,
2013.
Printed Book.