APA-ийн эшлэл(7 дахь хэвлэлт)
Ngonga, F. L. (2006). High performance business strategies and techniques practice by successful large private service enterprise in Nairobi. Daystar University.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Ngonga, Francis Lasalo. High Performance Business Strategies and Techniques Practice by Successful Large Private Service Enterprise in Nairobi. Nairobi: Daystar University, 2006.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Ngonga, Francis Lasalo. High Performance Business Strategies and Techniques Practice by Successful Large Private Service Enterprise in Nairobi. Daystar University, 2006.
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