The National Institute of the Korean Language & The International Korean Language Foundation, 2008
Buku Teks
Coggle, Paul, author
Teach Youeself Books, 1991
Buku Teks
Cavalier, Robert
Writers and readers Publishing, 1998
Buku Teks
Bakker, Gerbrand, author
Uitgeverij Piramide, 1997
Buku Teks
Wilkes, Angela
[date of publication not identified]
Buku Teks