See Allo

Manning, Gerald L., author

Selling today : building quality partnerships

Prentice Hall International, 1998

Buku Teks

Weits, Barton A., author

Selling : building partnerships

McGraw-Hill Irwin, 2001

Buku Teks

Allen, Peter, author

Pitman, 1998

Buku Teks

Allen, Robert Y., author

Selling dynamics

McGraw-Hill, 1984

Buku Teks

Wingate, John W., author

Fundamentals of selling

South-Western Publishing, 1959

Buku Teks

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