Kotler, Philip, author
Prentice Hall of India, 1988
Buku Teks
Kotler, Philip, author
Prentice Hall International, 1984
Buku Teks
Lehmann, Donald R., author
McGraw-Hill, 2005
Buku Teks
Hughes, G. David, author
Addison-Wesley, 1978
Buku Teks
edited by Martin Chritopher and Gordon Wills
George Allen and Unwin, 1972
Buku Teks