Cabot, Meg
Harper Collins, 2001
Buku Teks
Wint, Guy
Penguin Books, 1955
Buku Teks
Korean Culture and Information Service Ministry of Culture, Sports and Tourism, 2009
Buku Referensi
Kil sang Yi
Academy of Korean Studies, 2006
Buku Teks
Sisayongosa, 1973
Buku Referensi