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Subject Term
- value of information[remove]19
- economics of information11
- advertising4
- commodity promotion4
- development communication3
- Africa2
- agribusiness2
- communication systems2
- communicator effectiveness2
- development2
- extension2
- extension communication2
- extension services2
- farmers2
- information issues2
- information needs2
- information systems2
- participation2
- pork2
- research needs2