Swan, Michael
Cambridge University Press, 1987
Buku Teks
The Language Research Institute of Seoul National University ; written by Lee Sang-oak ... [et al]
Hollym, 1998
Buku Teks
The Language Research Institute of Seoul National University ; written by Lee Sang-aak ... [et al]
Hollym, 1999
Buku Teks
The Language Research Institute of Seoul National University; written by Lee Sang-oak Lee [and others]
Hollym, 1999
Buku Teks
Bradford, Barbara
Cambridge University Press, 1988
Buku Teks