APA-viite (7. p.)
Chen, C. (2009). Bank efficiency in Sub-Saharan African middle-income countries. International Monetary Fund.
Chicago-viite (17. p.)
Chen, Chuling. Bank Efficiency in Sub-Saharan African Middle-income Countries. [Washington, D.C.]: International Monetary Fund, 2009.
MLA-viite (9. p.)
Chen, Chuling. Bank Efficiency in Sub-Saharan African Middle-income Countries. International Monetary Fund, 2009.
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