Chomsky, Noam
Fontana/Collins , 1975
Buku Teks
Arnush, Craig
Sams Pub., 1995
Buku Teks
Vincent, Mark
London University, 2003
Buku Teks
Speight, Kathleen
The English Universities Press, 1957
Buku Teks
Aitchison, Jean, 1938-
Contemporary Books, 2008
Buku Teks