Yun, Heng-gil, author
Jangma
Mineumsa, 2007
 Buku Teks
20 segi hanguk soseul 28 : nanjunggiga ssoaollin jageun gong, mwebiuseueui jti, jangma, ahop kyeolleeui guduro nameun sanae
Chang bi, 2010
 Buku Teks