Miller, Lee G.
The Viking Press, 1950
Buku Teks
Mille, G. Tyler
Brooks/Cole, Cengage Learning,, 2010
Buku Teks
Sung, Betty Lee
Collier Books, 1967
Buku Teks
Myung-bak, Lee
Korean Overseas Culture and Information Service, 2008
Buku Teks
Lee, Ji-hyeon
Yon Lim kati nol, 2008
Buku Teks