Gaya APA
Porter, Michael E.. (1985).
Competitive Advantage : Creating and Sustaining Superior Perfomance .
New York:
The Free Press.
Gaya Chicago
Porter, Michael E..
Competitive Advantage : Creating and Sustaining Superior Perfomance.
New York:
The Free Press,
1985.
Buku Teks.
Gaya MLA
Porter, Michael E..
Competitive Advantage : Creating and Sustaining Superior Perfomance.
New York:
The Free Press,
1985.
Buku Teks.
Gaya Turabian
Porter, Michael E..
Competitive Advantage : Creating and Sustaining Superior Perfomance.
New York:
The Free Press,
1985.
Buku Teks.