Ulanoff, Stanley M., editor-in-chief
McGraw-Hill, 1985
Buku Referensi
Quelch, John A., author
Prentice-Hall, 1989
Buku Teks
Brannen, William H.
Prentice-Hall, 1983
Buku Teks
Stockton B. Colt, editor
[American Management Association, ], 1998
eBooks
Prentice-Hall, 1981
Buku Teks