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Dragonfly Books, 1963
Buku Teks
Cambridge University Press , 1996
Buku Teks
Barnett, A. Doak (Arthur Doak), author
Overseas Development Council, 1979
Buku Teks
Xi, Qiaojuan (席巧娟), editor
China Intercontinental Press, 2010
Buku Teks
Westview Press, 1980
Buku Teks