APA Style
Hutabarat, Herdy N.. (2014).
The power of enthusiasm .
Yogyakarta:
Andi.
Chicago Style
Hutabarat, Herdy N..
The power of enthusiasm.
Yogyakarta:
Andi,
2014.
Text.
MLA Style
Hutabarat, Herdy N..
The power of enthusiasm.
Yogyakarta:
Andi,
2014.
Text.
Turabian Style
Hutabarat, Herdy N..
The power of enthusiasm.
Yogyakarta:
Andi,
2014.
Print.