Gaya APA
PORTER, Michael E.. (0).
Competitive strategy .
New York:
The Free Press,.
Gaya Chicago
PORTER, Michael E..
Competitive strategy.
New York:
The Free Press,,
0.
Buku.
Gaya MLA
PORTER, Michael E..
Competitive strategy.
New York:
The Free Press,,
0.
Buku.
Gaya Turabian
PORTER, Michael E..
Competitive strategy.
New York:
The Free Press,,
0.
Buku.