Kirkpatrick, Charles A.
Salesmanship
South-Western Publishing, 1976
 Buku Teks SO
Baduara, Sotar
Salesmanship
Akademika Pressindo, 1984
 Buku Teks
Baduara, Sotar
Salesmanship
Akademika Pressindo, 1984
 Buku Teks
Pederson, Carlton A.
Salesmanship: principles and methods
Richard D. Irwin. Inc., 1957
 Buku Teks SO
Anderson, Lowell
Salesmanship : a programmed guide
Prentice-Hall, 1971
 Buku Teks SO