edited by Michael E. Porter
Harvard Business School Press , 1986
Buku Teks
Ohmae, Kenichi, author
The Free Press, 1985
Buku Teks
Ball, Donald A., author
Irwin/McGraw-Hill, 2002
Multimedia
Ball, Donald A., author
McGraw-Hill , 2002
Multimedia
Ball, Donald A., author
Irwin McGraw-Hill, 1999
Buku Teks