Is there any room for innovation in the marketing audit
 Artikel Jurnal
Levitt, Theodore
Innovation in marketing; new perspectives for profit and growth/ Theodore Levitt
Pan Books, 1962
 Buku Teks
Levitt, Theodore
Innovation in marketing new perspectives for profit and growth
McGraw-Hill, 1962
 Buku Teks
Wilson, Aubrey
Marketing audit checlists : a guide to effective marketing resource realization
McGraw-Hill, 1993
 Buku Referensi
Lovelock, Christopher H.
Services marketing
Prentice-Hall, 1960
 Buku Teks