Ulanoff, Stanley M., editor
Hastings House, 1977.
Buku Teks
Bettinghaus, Erwin P.
Holt, Rinehart and Winston, Inc., 1968
Buku Teks
Dyer, Gillian
Routledge, 1996
Buku Teks
Cook, Stanley
Penguin Book, 1945
Buku Teks
Garn, Stanley M.
Charles C. Thomas, 1971
Buku Teks