Gregory, Vicki L., 1950-, author
Neal-Schuman , 2011
Multimedia
Hofer, Myron A
W.H. Freeman and Company , 1981
Buku Teks
Larman, Craig, author
Prentice-Hall, 1998
Buku Teks
Gregory, Vicki L., 1950-, author
Neal-Schuman Publishers, 2011
Buku Teks
Ignizio, James P., author
Prentice-Hall, 1991
Buku Teks