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Subject Term
- extension communication[remove]93
- media selection[remove]93
- extension57
- media effectiveness45
- extension methods34
- communication planning26
- extension agents24
- mass media17
- information services16
- extension programs14
- television14
- farmers13
- radio13
- extension information12
- information sources12
- newspapers12
- teaching methods12
- attitudes11
- development communication11
- extension services11