Developing a Professional Sales Force: A Guide for Sales Trainers and Sales Managers Autor David A. Stumm 31 oct 1986 Hardback Preț: 450.65 lei 765.88 lei 6-8 săpt. -41%
Developing Negotiation Skills in Sales Personnel: A Guide to Price Realization for Sales Managers and Sales Trainers Autor David Arthur Stumm et al. 30 sep 1987 Hardback Preț: 449.86 lei 653.32 lei 6-8 săpt. -31%