Archipelago Press, 1994
Buku Referensi
Entwistle, Jill, author
Roto Vision SA, 2000
Buku Referensi
Cuito, Aurora, author
Hongkong : Page One Publishing, 2002,
Buku Referensi
Page One Publishing, [date of publication not identified]
Buku Referensi
Ypma, Herbert, author
Thames & Hudson, 1999
Buku Referensi