Hwang, Pae-gang, author
Jain, 2006
Buku Teks
Yoo, Yeol-su
Yekyong Publishing Co., 2002
Buku Referensi
Choi, Nae-ok, author
(Ju) Chang Jak gwa Bi pyong sa, 2001
Buku Teks
Gwon, Sung-ung, author
Naramal, 2007
Buku Teks
Methopld, Ken
Compass Publishing, 2007
Buku Teks