Austin, James E.
The Free Press, 1990
Buku Teks
Hunger, J. David, 1941-, author
Addison-Wesley, 1996
Buku Teks
Dess, Gregory G., author
McGraw-Hill, 1993
Buku Teks
Saloner, Garth, author
John Wiley & Sons, 2001
Buku Teks
edited by Arthur A. Thompson, William E. Fulmer, A.J. Strickland
Irwin, 1992
Buku Teks