Longrigg, Stephen Hemsley
Oxford University Press , 1955
Buku Teks
Stocking, George W.
Vanderbilt University Press, 1970
Buku Teks
Frank, Helmut J.
Frederick A. Praeger, 1966
Buku Teks
Mikdashi, Zuhayr
Frederick A. Praeger, 1966
Buku Teks
Brock, Ray
The world Publishing, 1952
Buku Teks