1.

図書
図書
1. Competitive advantage : creating and sustaining superior performance
Michael E. Porter
出版情報: New York : Free Press, 2004
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2.

図書
図書
2. Competitive strategy : techniques for analyzing industries and competitors : with a new introduction (: export ed.)
Michael E. Porter
出版情報: New York : Free Press, c1998
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3.

図書
図書
3. The competitive advantage of nations
Michael E. Porter
出版情報: New York : Free Press, c1990
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