Song, Ho Jeong
Seoul : Ung Jin Junior, 2007
Buku Teks
Jang, Yong Jun, author
Bookmentor, 2008
Buku Teks
Guksa Phyeon Chan Wiwanhwe, 1981
Buku Referensi
Kim, Hyong-jung, author
Etoos Kyoyuk, 2011
Buku Referensi
Kim, Yong-gi; Kim, Yong Man, author
Sumaksae, 2005
Buku Teks