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Subject Term
- audiovisual media[remove]41
- educational media[remove]41
- media effectiveness14
- development communication13
- extension communication13
- teaching aids11
- rural development10
- audiovisual training9
- development9
- educational methods9
- teaching methods9
- video8
- audiovisual equipment7
- educational media video7
- extension7
- videotapes6
- visual communication6
- audiovisual materials5
- extension methods5
- films5