S.M. Entertainment, 2014
Buku Teks
Comrie, Bernard, 1947-
Cambridge University Press, 1985
Buku Teks SO
Hornstein, Norbert
MIT Press, 1990
Buku Teks
Koehn, Edward Henry
Summer Institute of Linguistics, [date of publication not identified]
Buku Teks
Poutsma, H.
P. Noordhoff, 1922
Buku Teks