| JOURNALS | | BOOKS |
| | - Profitable direct marketing (1998) / Jay, Ros
- Profitable direct marketing (2nd ed, 1992) / Kobs, Jim
- The direct marketing guide. (1998)
- How to find and cultivate customers through direct marketing (1996) / Baier, Martin [electronic book]
- Direct marketing : strategy, planning, execution (4th ed, 2000) / Nash, Edward L.
- Direct and database marketing (1997) / McCorkell, Graeme
- Know your customer : new approaches to understanding customer value and satisfaction (1996) / Woodruff, Robert B.
- International marketing (8th ed, 2000) / Terpstra, Vern
- Applied consumer behaviour (1996) / Evans, Martin
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