Schwartz, Bernard, author
Little, Brown & Co., 1977
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1988
Buku Teks
edited by Brian Harvey, Henk van Luijk and Horst Steinmann
Prentice-Hall, 1994
Buku Teks
Reed, Edward Wilson, 1913-, author
Prentice-Hall, 1977
Buku Teks
Lucas, Henry C., author
McGraw-Hill, 1986
Buku Teks