Hussain, K.M.
Prentice-Hall, 1995
Buku Teks
Computer Technology Research, 1993
Buku Referensi
Piccoli, Gabriele
John Wliley , 2012
Buku Teks
Kendall, Kenneth E.
Pearson - Prentice Hall, 2005
Buku Teks
Gibson, Cyrus F.
Lexington Books , 1987
Buku Teks