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- Zimbabwe (Africa, Eastern)[remove]2
- rural development[remove]2
- Africa1
- Botswana (Africa, Southern)1
- Kenya (Africa, Eastern)1
- Nigeria (Africa, Western)1
- agricultural produce1
- agricultural production1
- communication methods1
- cooperation1
- cooperative programs1
- cotton1
- crops1
- development communication1
- economic development1
- economic information1
- extension education1
- government1
- history1
- information flow1