Arnold, John, author
Prentice-Hall, 1990
Buku Teks
Arnold, John, author
Prenctice-Hall, 1983
Buku Teks
mcGraw-Hill , 2000
Multimedia
Goldschmidt, Yaaqov
Cornell University Press , 1970
Buku Teks
Norgaard, Corine T., author
Prentice-Hall, 1985
Buku Teks