Routledge, 1991
Buku Teks SO
Rojas, Carlos
London : Harvard University Press, 2010
Buku Teks SO
Bury, J.B.
Random House, [Date of publication not identified]
Buku Teks SO
Bury, J.B.
Modern Library, 1913
Buku Teks SO
Guoqi, Xu
Oxford University Press, 2017
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