Gaya APA
Hutabarat, Herdy N., Prabawati, Th. Arie. (2014).
The Power of enthusiasm .
Yogyakarta:
ANDI.
Gaya Chicago
Hutabarat, Herdy N., Prabawati, Th. Arie.
The Power of enthusiasm.
Yogyakarta:
ANDI,
2014.
Text.
Gaya MLA
Hutabarat, Herdy N., Prabawati, Th. Arie.
The Power of enthusiasm.
Yogyakarta:
ANDI,
2014.
Text.
Gaya Turabian
Hutabarat, Herdy N., Prabawati, Th. Arie.
The Power of enthusiasm.
Yogyakarta:
ANDI,
2014.
Print.