Saloner, Garth, author
John Wiley & Sons, 2001
Buku Teks
Wright, Peter, author
Allyn and Bacon, 1992
Buku Teks
Ansoff, H. Igor, author
John Wiley & Sons, 1979
Buku Teks
Greenley, Gordon E., author
Prentice-Hall, 1989
Buku Teks
edited by H. Igor Ansoff
John Wiley & Sons, 1976
Buku Teks