Liu yun. (2011). Trích lược HSK cấp 5: Listening Guide to the New HSK Level 5. China: Peking University Press.
Παραπομπή Chicago StyleLiu yun. Trích Lược HSK Cấp 5: Listening Guide to the New HSK Level 5. China: Peking University Press, 2011.
Παραπομπή MLALiu yun. Trích Lược HSK Cấp 5: Listening Guide to the New HSK Level 5. China: Peking University Press, 2011.
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