APA Style
Hutabarat, Herdy N.. (2014).
The Power Of Enthusiasm .
Yogyakarta:
Andi.
Chicago Style
Hutabarat, Herdy N..
The Power Of Enthusiasm.
Yogyakarta:
Andi,
2014.
Buku.
MLA Style
Hutabarat, Herdy N..
The Power Of Enthusiasm.
Yogyakarta:
Andi,
2014.
Buku.
Turabian Style
Hutabarat, Herdy N..
The Power Of Enthusiasm.
Yogyakarta:
Andi,
2014.
Buku.