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Han Kook Munhwasa, 2006
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Hanguko munpomnon : piyoron chok kwanchom eso pon chosa wa omi ui hyongtae tongsaron
Teukpyolsi : Worin, 2003
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Choi, Ki-yong
Hanguko kyokkwa chosa ui saengsong tongsaron
Hangukmunhwasa, 2009
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Kim, Ji Hyon
Hancharo Bac cosen Hanguko I = to learn Korean markings 漢字. I
Yoossi elaienssi, 2005
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Gungnip Kugowon Chiyogo Chosa Chujin Wiwonhoe
Thaehaksa, 2006
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