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Subject Term
- video[remove]5
- educational media video3
- extension communication3
- interactive media3
- educational video2
- media effectiveness2
- roles2
- videodisc2
- adult education1
- audience1
- audience analysis1
- children1
- delivery methods1
- education1
- educational television1
- extension1
- extension agents1
- extension programs1
- extension services1
- farmers1