Lee, Byong-gab
Urimal munjang baro ssegi note : hanguk omunsang jedaero ssedo pa rekekogi
Minemsa, 2009
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Park, Jong Deok
Gukeo gyoyokeul wihan T'honghab gukeo nansul gyoyukhak
Hankookmunhwasa, 2008
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Choi, Ki-ho
Jo ongen gel olbaren gel ssegi sae gillajabi
Dongkwang Chulphansa, 2001
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Han, Su-yong
Gelssegi-ui jido = roadmap to better writing
Jisieul Nalge, 2010
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Hangugo nengryeok siherom sseugi
edited by Koh Ryuk Yong
Pagijong, 2008
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