Beaty, Wayne H., editor
McGraw-Hill Publishing Company, 1990
Buku Referensi
Carlson, A. Bruce
Addison-Wesley, 1981
Buku Teks
Korn, Granino A.
McGraw-Hill, 1965
Buku Teks
Dekker, Adrianus J.
Prentice-Hall, 1984
Buku Teks
Shepherd, John
Pitman, 1993
Buku Teks