Twiname, B. Gayle, author
Prentice-Hall, 2002
Buku Teks
by Emil Ihrig ... [and others]
Osborne McGraw-Hill, 1991
Buku Teks
Campbell, David, author
McGraw-Hill, 1993
Buku Teks
Ettlin, Walter A., author
McGraw-Hill, 1990
Buku Teks
Ponder, Randall D., author
EP Entrepreneur Press, 2005
Buku Teks