Boynton, Robert W.
Boynton/Cook Publishers, 1992
Buku Teks
Shaw, Valerie
Longman, Green, 1994
Buku Teks
Cambridge University Press, 2007
eBooks
[compiled by] X.J. Kennedy, Dana Gioia
Harper Collins, 1991
Buku Teks
DiYanni, Robert
McGraw-Hill, 2000
Buku Teks