Quelsch, John A.
Sales promotion management
Prentice-Hall, 1989
 Buku Teks SO
Quelch, John A.
Sales promotion management
Prentice-Hall, 1989
 Buku Teks SO
Brannen, William H.
Advertising and sales promotion
Prentice-Hall, 1983
 Buku Teks SO
Spitzer, Harry
Inside retail sales promotion and advertising
Harper and Row, 1982
 Buku Teks SO
The sales compensation handbook
edited by Stockton B. Colt
[American Management Association, ], 1998
 eBooks