George Allen and Unwin, 1983
Buku Teks
Buckley, K., author
Burns Philip , 1981
Buku Teks
University of Queensland Press, 1978
Buku Teks
Michel, K.
Meulenhoff, 1992
Buku Teks
Haeoe Hongbowon, author
Korean Culture and Information Service, 2011
Buku Teks