| JOURNALS | | BOOKS |
| | - The Direct marketing handbook (2nd edition, 1992) / Nash, Edward L
- The new integrated direct marketing (1998) / Berry, Mike
- 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 marketing management (1989) / Roberts, Mary Lou
- Commonsense direct marketing (4th ed, 2000) / Bird, Drayton
- Exploring direct marketing (1999) / O'Malley, Lisa
- International marketing : a cultural approach (1993) / Usunier, Jean-Claude
- Direct and database marketing (1997) / McCorkell, Graeme
- The marketing research process (4th ed, 1995) / Crimp, Margaret
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