ebrary, Inc, & Okpara, J. O. (2007). Management and economic development in sub-Saharan Africa: Theoretical and applied perspectives. Adonis & Abbey Publishers Ltd..
Чикаго-гийн эшлэл (17 дахь хэвлэлт)ebrary, Inc, ба John O. Okpara. Management and Economic Development in Sub-Saharan Africa: Theoretical and Applied Perspectives. London: Adonis & Abbey Publishers Ltd., 2007.
MLA -ийн эшлэл (9 дэх хэвлэлт)ebrary, Inc, ба John O. Okpara. Management and Economic Development in Sub-Saharan Africa: Theoretical and Applied Perspectives. Adonis & Abbey Publishers Ltd., 2007.
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