See Allo

Manus-Hannaford, R.G., author

Selling and salesmanship

Macdonald, 1964

Buku Teks

Norris, James S., author

Selling-the how and why : a comprehensive introduction to salesmanship

Prentice-Hall, 1982

Buku Teks

Fernald, Charles H., author

Prentice-Hall, 1959

Buku Teks

Jenks, Ernest E., author

Alexander hamilton Institute, 1962

Buku Teks

Kirkpatrick, Charles A., author

South-Western Publishing, 1976

Buku Teks

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