Lee, Son-i, 1967-, author
Hanguk moon hwasa, 2007
Buku Referensi
McCune, George M., author
Harvard University Press, 1950
Buku Teks
Pyongyang : The Foreign Languages Publishing House
Majalah, Jurnal, Buletin
The Academy of Korean Studies , 2005
Buku Teks
Hogosa, 2009
Buku Referensi