Hữu Ngọc. (1996). Sketches for a portrait of Vietnamese culture (2nd enlarged ed.). Hà Nội: Thế giới.
Dyfyniad Arddull ChicagoHữu Ngọc. Sketches for a Portrait of Vietnamese Culture. 2nd enlarged ed. Hà Nội: Thế giới, 1996.
Dyfyniad MLAHữu Ngọc. Sketches for a Portrait of Vietnamese Culture. 2nd enlarged ed. Hà Nội: Thế giới, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.