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Subject Term
- audiovisual aids[remove]9
- extension communication[remove]9
- India8
- educational media7
- teaching aids5
- media effectiveness4
- visual communication4
- teaching methods3
- education effects2
- education methods2
- farmers2
- tape recordings2
- attitudes1
- audiovisual communication1
- audiovisual materials1
- crops1
- development communication1
- educational methods1
- educators1
- extension agents1