| 1 |  | How to deal with difficult customers : 10 simple strategies for selling to the stubborn, obnoxious, and belligerent / Dave Anderson . - Hoboken, N.J. : Wiley, 2007. - xxvi, 159tr. ; 23cm Mã xếp giá: 658.85 A54Đăng ký cá biệt: : 2000017333, : 2000017341-2, Lầu 2 KLF: 2000009050 |