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Subject Term
- online systems[remove]6
- teletext[remove]6
- information services3
- information systems3
- computers2
- databases2
- extension communication2
- extension information2
- farmers2
- information networks2
- market information2
- videotext2
- Europe1
- colleges1
- communication systems1
- electronic mail1
- electronic marketing1
- extension programs1
- farmer perceptions1
- information needs1