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Subject Term
- extension[remove]119
- media effectiveness[remove]119
- extension communication90
- farmers55
- information sources38
- extension methods31
- Internet29
- extension services29
- radio24
- information technology23
- social media22
- extension agents21
- information needs20
- telephone communication20
- extension programs19
- information issues18
- education effects16
- online services16
- cell phones15
- development communication15