Anderson, James A., author
McGraw-Hill, 1987
Buku Teks
Kalthoff, Robert J.
Prentice-Hall, 1981
Buku Teks
edited by Peggy L. Chinn
Maryland Aspen, 1986
Buku Teks
May, Tim, author
Open University Press, 2001
Buku Teks
edited by Richard P. Rumelt, Dan E. Schendel, David J. Teece
Harvard Business School Press, 1994
Buku Teks