APA Style
Hutabarat, Herdy. (2014).
The Power of Enthusiasm (1).
Yogyakarta:
.
Chicago Style
Hutabarat, Herdy.
The Power of Enthusiasm.
1
Yogyakarta:
,
2014.
Text.
MLA Style
Hutabarat, Herdy.
The Power of Enthusiasm.
1
Yogyakarta:
,
2014.
Text.
Turabian Style
Hutabarat, Herdy.
The Power of Enthusiasm.
1
Yogyakarta:
,
2014.
Print.