Hall, Douglas V., author
McGraw-Hill, 1986
Buku Teks
Tocci, Ronald J., author
Prentice-Hall, 1982
Buku Teks
Hilburn, John L., 1938-, author
Prentice-Hall, 1980
Buku Teks
Goody, Roy W.
New York Glencoe 1992,
Buku Referensi
Newell, Sydney B., author
Harper & Row, 1982
Buku Teks