Czepiel, John A.
Prentice-Hall, 1992
Buku Teks
Ferrell, O.C.
Thomson South-Western, 2008
Buku Teks
edited by Philip Kotler, Keith K. Cox
Prentice-Hall, 1984
Buku Teks
Perreault, William D.
McGraw-Hill, 2014
Buku Teks
Perreault, William D.
McGraw-Hill, 2015
Buku Teks