Kotler, Philip, author
Pearson Education, 2006
Buku Teks
Leeflang, P.S.H.
Leiden, Antwerpen , HE Stenfert Kroese B.V., 1981.
Buku Teks
Morse, Stephen A., author
Crest Publishing House, 2001
Buku Teks
Kurtz, David L., author
The Dryden Press , 1981
Buku Teks
Alex Soemadji Nitisemito, author
Ghalia Indonesia, 1984
Buku Teks