Routledge, 1995
Buku Teks
Hacker, Jonathan
Oxford University Press, 1991
Buku Teks
Hacker,Jonathan
New York Oxford University Press 1991,
Buku Teks
edited by Hersh Zeifman and Cynthia Zimmerman
Macmillan, 1993
Buku Teks
New York : Vintage Book, 1969
Buku Teks