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- media effectiveness[remove]3
- rural development[remove]3
- photographs2
- photography2
- social factors2
- visual communication2
- Farm Security Administration1
- adult education1
- audiovisual media1
- change1
- communicators1
- coverage1
- demonstrations1
- development communication1
- development issues1
- distribution1
- extension1
- extension communication1
- extension methods1
- extension programs1