Ulanoff, Stanley M.
Hastings House, 1977.
Buku Teks
Ulanoff, Stanley M.
Hastings House , 1977
Buku Teks
Bettinghaus, Erwin P., author
Holt, Rinehart and Winston, Inc., 1968
Buku Teks
Dyer, Gillian
Routledge, 1996
Buku Teks
Cook, Stanley
Penguin Book, 1945
Buku Teks