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Buku Teks
So, Sin-hye, author
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Buku Teks
Kang, Myong-gwan, author
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Buku Teks
Yun, Yong-i, author
Cambridge University Press, 2006
Buku Teks
Kim, Tae-hyong, author
Yoksa ui Ach?im , 2009
Buku Teks