Darvill, Timothy
London Historic Building & Manuments Commission for England 1987
Buku Teks
Sjotter, David
Routledge, 1998
Buku Teks
Cambridge University Press, 2015
eBooks
Kilian, Crawford
Douglas & McIntyre, 1978
Buku Teks
Ceram, C.W., 1915-1972
Alfred A. Knopf, 1958
Buku Teks