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Subject Term
- presentation[remove]23
- visual communication[remove]23
- public speaking7
- extension6
- extension communication6
- films6
- teaching methods6
- face-to-face communication5
- media effectiveness5
- slides5
- design4
- educational media4
- extension methods4
- illustrations4
- audiovisual media3
- demonstrations3
- graphics3
- group teaching3
- posters3
- television3