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Roles of Agricultural Extension in Agricultural Development
10:14
Principles of Agricultural Extension
10:26
Agricultural Extension as a Source of Technological change
09:37
Influence of Technological Changes in Nigerian Agricultural Development II
05:48
Influence of Technological Changes in Nigerian Agricultural Development
09:14
Factors to considered in introducing a technology into a community
09:07
General Principles in Introducing Technological Changes in Nigeria
13:23
Basic Social change
07:22
Understanding Technological change
06:53
Understanding Technological and the concept of social change
10:54
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