Kohls, Richard L.
Marketing of agricultural products / Richard L. Kohls
Macmillan, 1969
Buku Teks SO
Kohls, Richard L.
Marketing of agricultural products Richard l. Kohls and W. David Downey
New York, N.Y. Macmillan c.1972,
Buku Teks
Larson, Adlowe L.
Agricultural marketing /Adlowe L. Larson
Prentice-Hall, 1957
Buku Teks
Clark, Fred E.
Marketing agricultural products in the United States
Macmillan, 1933
Buku Teks
The marketing of industrial products
edited by Norman Hart
McGraw-Hill, 1984
Buku Teks SO