Lee, Ki-baik
Iechokak, 1984
Buku Teks
Korea Historical Research Association
Saffron, 2005
Buku Teks
Sohn, Pow-key
Korea National Commision for Unesco, 1984
Buku Teks SO
Han, Woo-keun
The Eul-Yoo, 1971
Buku Teks SO
Lee, Ki-baik
Ilchokak, 1984
Buku Teks