Choi, Ki-ho
Jo ongen gel olbaren gel ssegi sae gillajabi
Dongkwang Chulphansa, 2001
Buku Teks
Lee, Jae Sung.
Gelssegirelwihan 4 chonmane gugochek
Delnyok, 2009
Buku Teks
Hangel baregae algo sseja machumbob pyon = the correct labeling Hangul Refurbished: Spelling side
Taeyoung M & B, 2006
Buku Referensi
Hangugo nengryeok siherom sseugi
edited by Koh Ryuk Yong
Pagijong, 2008
Buku Teks
Jung, Jae Hwan
Daehanmingugen badassegijung / Jae Hwan Jung
Kim yongsa, 2005
Buku Teks