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- information issues[remove]4
- development issues3
- extension3
- extension services3
- development communication2
- extension communication2
- extension methods2
- extension needs2
- Africa1
- Ecuador1
- communication units1
- crops1
- extension systems1
- farm women1
- linkages1
- participation1
- potatoes1
- research organizations1
- technology transfer1
- training and visit system1