Korean Culture & Arts Foundation, 1984
Buku Teks
Lee, Nye-sun, author
I Hwa Yeo Ja Doe Hak Gyo Chul panbu, 2005
Buku Teks
Kim, So Woll, author
Universitas Soeul, 2001
Buku Teks
Lee, Gyong Hye, author
Alma, 2008
Buku Teks
Ryoo, Gi Bong, author
Wisdom House, 2006
Buku Teks