See Allo

Wingate, John W., author

Fundamentals of selling

South-Western Publishing, 1959

Buku Teks

Allen, Robert Y., author

Selling dynamics

McGraw-Hill, 1984

Buku Teks

Sutton, Kelso, author

The technique of selling

McGraw-Hill, 1949

Buku Teks

Sugars, Bradley J., author

McGraw-HIll , 2006

Buku Teks

Buskirk, Richard Hobart, 1927-, author

Selling : principles and practices

McGraw-Hill, 1992

Buku Teks

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