Cao, V. L. (2014). Lịch sử châu Phi – cái nhìn tổng quát.
শিকাগো স্টাইলে সাইটেশনCao, Văn Liên. Lịch Sử Châu Phi � Cái Nhìn Tổng Quát. 2014.
এমএলএ সাইটেশনCao, Văn Liên. Lịch Sử Châu Phi � Cái Nhìn Tổng Quát. 2014.
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