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Subject Term
- extension services[remove]4
- agricultural development2
- extension2
- extension communication2
- extension systems2
- Nigeria1
- Nigeria (Africa, Western)1
- USA (United States of America; North America)1
- USDA (United States Department of Agriculture)1
- advisory services1
- agricultural change1
- agricultural education1
- book review1
- change1
- communication systems1
- diffusion1
- extension agents1
- extension methods1
- farm families1
- higher education1