Callon, Jack D.
Competitive advantage through information technology / Jack D. Callon
McGraw-Hill Companies, 1996
 Buku Teks SO
Callon, Jack D.
Competitive advantage through information technology/Jack D. Callon
McGraw-Hill , 1996
 Buku Teks SO
Pitts, Robert A.
Strategic management: building and sustaining competitive advantage
South-Western College Publishing, 2000
 Buku Teks SO
Porter, Michael E.
Competitive advantage
Free Press, 1985
 Buku Teks SO
Porter, Michael E.
The competitive advantage of nations
The Free Press , 1990
 Buku Teks SO