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Subject Term
- videotapes[remove]88
- audiovisual media20
- extension communication16
- video15
- development communication14
- extension14
- educational video12
- television11
- educational media video10
- media effectiveness10
- satellites10
- audiovisual training9
- educational media9
- rural development9
- extension information8
- audience participation7
- development7
- extension programs7
- teaching methods7
- communication6