Peachpit Press , 1994
Buku Teks
by John C. Dvorak ... [and others]
Osborne McGraw-Hill , 1992
Buku Teks
Macek, Rosanne M.
Meckler Corporation, 1988
Buku Referensi
Stauffer, Todd
IDG Books, 2000
Buku Teks
Cobb, Stephen
Windcrest Books McGraw-Hill, 1991
Buku Teks