compiled by GANADA Korean Language Institute; translated by Lee Kee-dong
Language Plus, 1997
Buku Teks
Dutton, Geoffrey
Macmillan, 1980
Buku Teks SO
Bryson, John
Penguin Books, 1982
Buku Teks SO
McQueen, James, 1934-1998
University of Queensland, 1981
Buku Teks SO
Bosi, Pino
Hodja Educ, 1983
Buku Teks SO