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Subject Term
- media effectiveness[remove]4
- photographs[remove]4
- change2
- photography2
- rural development2
- social factors2
- visual communication2
- Farm Security Administration1
- Vietnam1
- agriculture research1
- appeals (message)1
- attitudes1
- campaign planning1
- campaigns1
- communication planning1
- communicators1
- conservation1
- coverage1
- development issues1
- distribution1