Anthony, Robert N. (Robert Newton), 1916-2006, author
McGraw-Hill, 1999
Buku Teks
Greenfield, James M., author
John Wiley & Sons, 2001
Buku Teks
Kotler, Philip, author
Prentice-Hall, 1995
Buku Teks
Lee, Jyh-an, author
Edward Elgar, 2012
Buku Teks
Shim, Jae K.
Prentice-Hall, 1996
Buku Referensi