Johnson, Dave, author
McGraw-Hill, 2003
Buku Teks
Simmons, Curt, 1968-, author
McGraw-Hill, 2003
Buku Teks
Bennie, Michael, author
Elex Media Komputindo, 1996
Buku Teks
Schoch, Elizabeth T.
Adam Media Corporation, 2002
Buku Teks
Green, James H., author
McGraw-Hill, 1984
Buku Teks