Puchta, Herbert
Cambridge University Press, 2010
Buku Teks SO
Lander, Eleanor
Newbury House Publishers, 1983
Buku Teks SO
Ahn, Kyung Hwa
Korean Studies Department, The Korea Foundation, 2008
Multimedia
Maanjinmedia, 2007
Buku Teks
Sato, Eriko
Wiley, 2002
Buku Teks SO