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- Taiwan (Republic of China)[remove]6
- extension programs[remove]6
- extension systems4
- extension communication3
- extension services3
- rural development3
- extension2
- farmers2
- India1
- Malawi1
- adoption1
- cooperation1
- cooperative programs1
- credit1
- development1
- extension agents1
- extension methods1
- farming methods1
- farming systems research1
- grains1