Porter, Michael E.
Competitive advantage
Free Press, 1985
 Buku Teks SO
Luthans, Fred
Psychological capital : developing the human competitive edge
Oxford University Press, 2007
 Buku Teks SO
Porter, Michael E.
Competitive strategy : techniques for analyzing industries and competitors
Free Press, 1980
 Buku Teks SO
Porter, Michael E.
Competitive advantage : creating and sustaining superior performance
The Free Press , 1985
 Buku Teks SO
Rothwell, William J., 1951-
Lean but agile: rethink workforce planning and gain a true competitive edge
American Management Association, 2012
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