Ananta Sjartubi
Gramedia, 1996
Buku Teks
Burrows, William E.
MCGraw-Hill , 2003
Buku Teks
Mansfield, Richard
Elex Media Komputindo, 2002
Buku Teks
Burrows, William E.
McGaw-Hill, 2003
Multimedia
Halvorson, Michael
Elex Media Komputindo, 2000
Buku Referensi