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Subject Term
- videotext[remove]9
- telecommunications6
- Switzerland3
- computers3
- extension3
- teletext3
- television3
- readability2
- Extension Service Telecommunications system (ESTEL)1
- Maryland, USA1
- Wisconsin, USA1
- colleges1
- communication networks1
- communicators1
- extension communication1
- extension programs1
- extension services1
- farm journals1
- farmers1
- information dissemination1