Boak, Arthur E.R.
Macmillan, 1961
Buku Teks
Gabor, Dennis, author
Pergamon Press, 1978
Buku Teks
King, Alexander, author
Simon & Schuster, 1991
Buku Teks
Sprey, K.
's-Gravenhage Servire 1950
Buku Teks
Johns, Catherine
British Museum Press, 1982
Buku Teks