Shaffer, David F., author
Hollym, 2007
Buku Referensi
Eagan, Angela, author
Marshall Cavendish, 2007
Buku Teks
Noor Aini binti Datuk Abdullah, author
Mardshall Cavendish, 2010
Buku Teks
Korean Culture and Information Service
Hollym, 2010
Buku Teks
Gyomunsa, 2005
Buku Teks