Childe, V. Gordon
Alfred A. Knopf, 1958
Buku Teks
Ferguson, Wallace K.
Sir Isaac Pitman & Sons, [date of publication not identified]
Buku Teks
Boak, Arthur E.R.
Appleton-Century-Crofts, 1951
Buku Teks SO
Childe, V. Gordon
Routledge, 1996
Buku Teks
Rice, Eugene F.
W.W. Norton, 1970
Buku Teks