Woodward, Val
Burgess, 1981
Buku Teks
Montagu, Ashley, 1905-1999
The Word Publishing, 1995
Buku Teks
Cummings, Michael R.
Brooks/Cole, Cengage Learning, 2011
Buku Teks
Snyder, Laurence H.
Heath, 1957
Buku Teks
Dunn, L. C.
The New American Library, Revised & enlarged edition
Buku Teks