Jenks, Ernest E.
Salesmanship
Alexander hamilton Institute, 1962
 Buku Teks
Kirkpatrick, Charles A.
Salesmanship
South-Western Publishing, 1976
 Buku Teks
Baduara S, Satar
Salesmanship
Akademika Pressindo, 1984
 Buku Teks
Baduara S, Satar
Salesmanship
Akademika Pressindo, 1984
 Buku Teks
Manus-Hannaford, R.G.
Selling and salesmanship
Macdonald, 1964
 Buku Teks