Hữu Ngọc. (1996). Sketches for a portrait of Vietnamese culture (2nd enlarged ed.). Hà Nội: Thế giới.
শিকাগো স্টাইলে সাইটেশনHữu Ngọc. Sketches for a Portrait of Vietnamese Culture. 2nd enlarged ed. Hà Nội: Thế giới, 1996.
এমএলএ সাইটেশনHữu Ngọc. Sketches for a Portrait of Vietnamese Culture. 2nd enlarged ed. Hà Nội: Thế giới, 1996.
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