Hogendorn, Jan S.
Prentice-Hall, 1995
Buku Teks
Burns, Arthur Edward
Harcourt, Brace, 1948
Buku Teks
Chang, Semoon
Allyn and Bacon, 1990
Buku Teks
Abbott, Lawrence
Harcourt, Brace and World, 1967
Buku Teks
Wright, David McCord, 1909-
Macmillan, 1955
Buku Teks