Capon, David Smith, author
John Wiley & Sons, 1999
Buku Teks
Hines, Thomas S., author
Monacelli, 2000.
Buku Teks
Bromberg, Andrew, author
Page One Publishing Private Limited, 2007
Buku Referensi
Lankhorst, Marc, author
Springer, 2013
Buku Teks
Blake, Peter, author
Peter Blake , 1973
Buku Referensi