Plamenatz, John, author
Longmans, Green, 1954
Buku Teks
Lin, Yutang, author
Farrar Straus and Cudahy, 1958
Buku Teks
Clark, Alan
A Signet Book, 1966
Buku Teks
Boyle, Peter G., author
Routledge, 1993
Buku Teks
Anghel, Ghenadie, author
[Gabler Verlag, ], 2012
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