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作者： C. O. A. Ugwumba , R. N. Okoh
DOI:
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摘要:
Agricultural Science,2013, 引用: 3
Journal of Agriculture and Social Sciences,2011, 引用: 19
TIJ's Research Journal of Economics & Business Studies - RJEBS,2013, 引用: 0
,2010, 引用: 3
,2013, 引用: 0
,2011, 引用: 2
,2013, 引用: 4
The Journal of Agricultural Science,2018, 引用: 0
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