edited by Gerald Zaltman, Philip Kotler, Ira Kaufman
Holt, Rinehart and Winston, 1972
Buku Teks
edited by S.N. Eisenstadt
Little, Brown and Company, 1968
Buku Teks
Prentice-Hall, 1970
Buku Teks
McRobert, Kenneth
McClelland and stewart, 1976
Buku Teks
edited by George K. Zollschan and Walter Hirsch
Halsted Press, 1976
Buku Teks