Effects of contract farming on production and income of sunflower farmers in Kongwa district in central agricultural zone of Tanzania
A thesis submitted in fulfilments of the requirements for award of the Degree of Doctor of Philosophy of Mzumbe University
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| 语言: | 英语 |
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Mzumbe University
2024
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| 主题: | |
| 在线阅读: | https://scholar.mzumbe.ac.tz/handle/123456789/761 |
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