Gaya APA
Siahaan, Janpie. (2009).
Managing competition (1).
JAKARATA:
Salemba Empat.
Gaya Chicago
Siahaan, Janpie.
Managing competition.
1
JAKARATA:
Salemba Empat,
2009.
EKONOMI.
Gaya MLA
Siahaan, Janpie.
Managing competition.
1
JAKARATA:
Salemba Empat,
2009.
EKONOMI.
Gaya Turabian
Siahaan, Janpie.
Managing competition.
1
JAKARATA:
Salemba Empat,
2009.
EKONOMI.