Wendy Abraham
John Wiley & Sons, 2013
Buku Teks
Purcell, Victor, 1896-1965
Oxford University Press, 1967
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Bushell, Stephen W.
Wyman and Sons, 1906
Buku Teks
All-China Student's Federation, 1955
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Yuwen, Li
China Renmin University Press, 2012
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