Holub, Allen I., author
Prentice-Hall, 1990
Buku Teks
Coats, Robert R., author
Reston Publishing, 1982
Buku Teks
Pittman, Thomas, author
Prentice-Hall, 1992
Buku Teks
Halstead, Maurice H., author
Elsevier, 1974
Buku Teks
Fischer, Charles N., author
Benjamin Cumming, 1988
Buku Teks