Vinokur, G.O. (Grigori Osipovich), 1896-1947, author
Cambrigde University Press , 2010
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Artikel Jurnal
Hunter, Wilson William, author
Clarendon Press, 1903
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Shin, Hyong Sik, author
Ewha Womans University Press, 2012
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Shin, Hyong Sik, author
Ewha Womans University Press, 2005
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