Stalling, William, author
Prentice-Hall, 1997
Buku Teks
edited by Ray Sarch
McGraw-Hill, 1990
Buku Referensi
Tooley, Michael H., author
Boston Newnes, 1992
Buku Teks
Black, Uyless D., author
A Reston Book, 1987
Buku Teks
Peter C. Anderson
McGraw-Hill, 1992
Buku Teks