Whiting, Percy H.
The five great rules of selling / Percy H. Whiting
Dale Carnegie & Associates, Inc., 1979
 Buku Teks
Nixon, H.K.
Principles of selling / by H. K. Nixon
McGraw-Hill, 1931
 Buku Teks
Allen, Peter, author
Selling
Pitman, 1998
 Buku Teks
Russell, Frederick A.
Selling : principles and practices / Frederic A. Russell, Frank H. Beach, Richard H. Buskirk
McGraw-Hill Publishing Company, 1988
 Buku Teks
Crissy, W.J.E.
Effective selling : a short course for professionals / W.J.E. Crissy, Isabella C.M. Cunningham, and William H. Cunningham
John Wiley & Sons, 1977
 Buku Teks
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