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Subject Term
- circulars[remove]4
- leaflets[remove]4
- extension3
- extension communication3
- bulletins2
- evaluation2
- history2
- media effectiveness2
- print media2
- teaching methods2
- writing skills2
- adult education1
- agricultural education1
- attitudes1
- audiovisual materials1
- audiovisual training1
- booklet1
- credibility (sources)1
- dairy1
- demonstrations1