Inspiring the salesman 著者: Lovelace, Griffin M. 1876-

Selecting the salesman 著者: Lovelace, Griffin M. 1876-

Training the salesman 著者: Lovelace, Griffin M. 1876-

Making the sale 著者: Vardaman, Ben R.

Keeping the salesman fit 著者: Vardaman, Ben R.

Overcoming sales objections 著者: Vardaman, Ben R.

Sales study of customer and goods 著者: Vardaman, Ben R

Sales talk and language 著者: Vardaman, Ben R