Thompson, Elspeth, author
Page One Publishing , 2002
Buku Referensi
Rees, Yvonne, author
Page One Publishing, 2001
Buku Referensi
Made Wijaya, author
Archipelago Press, 1999
Buku Referensi
Hepper, F. Nigel, edited
Her Majesty's Stationary Office, 1987
Buku Referensi
Strong, Roy, author
Conran Octopus, 1987
Buku Referensi