APA Style
Ong, Daniel. (2003).
The Power of Focus .
Yogyakarta:
Yayasan andi.
Chicago Style
Ong, Daniel.
The Power of Focus.
Yogyakarta:
Yayasan andi,
2003.
Text.
MLA Style
Ong, Daniel.
The Power of Focus.
Yogyakarta:
Yayasan andi,
2003.
Text.
Turabian Style
Ong, Daniel.
The Power of Focus.
Yogyakarta:
Yayasan andi,
2003.
Print.