Yu, Dok-son, author
Hong Mun Gwan, 2009
Buku Referensi
Lee, Yon-suk, author
Yeusook Lee, 2004
Buku Referensi
Bae, Yong-pha, author
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Buku Teks
Kim, Yol-gyu, author
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Buku Teks
Hong, Sa-jung, author
Atu Buksu, 2008
Buku Teks