Shelly, Gary B., author
Anaheim Publishing, 1984
Buku Teks
Wagner, Gerald E., author
South-Western Publishing, 1984
Buku Teks
Giarratano, Joseph C., author
Howard W. Sams, 1982
Buku Teks
Parsons, June, author
Cengage Learning, 2013
Buku Teks
Stallings, William, author
Pearson Prentice Hall, 2006
Buku Teks