Weits, Barton A., author
Selling : building partnerships
McGraw-Hill Irwin, 2001
 Buku Teks
Futrell, Charles M., author
Fundamentals of selling : customers for life
McGraw-Hill/Irwin, 2002
 Buku Teks
Futrell, Charles M., author
Fundamentals of selling : customers for life
McGraw-Hill, 2014
 Buku Teks
Lambert, Clark
Field selling skills / Clark Lambert
John Wiley & Sons, 1981
 Buku Teks
Nixon, H.K.
Principles of selling / by H. K. Nixon
McGraw-Hill, 1931
 Buku Teks
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