Davies,Colin, author
Laurence King Publishing, 2011
Buku Teks
Hale, Jonathan A., author
John Wiley & Sons, 2000
Buku Teks
Weber, Ralf.
Avebury, 1995
Buku Teks
Capon, David Smith, author
John Wiley & Sons, 1999
Buku Teks
Capon, David Smith, author
John Wiley & Sons, 1999
Buku Teks