Southern, R.W. (Richard William), 1912-2001, author
Cresset Librar, 1967
Buku Teks
Perroy, Edouard, 1901-1974, author
Presses Universitaires de France, 1961
Buku Teks
edited by C.G. Crump and E.F. Jacob
Clarendon Press, 1951
Buku Teks
Franken, H.J.
American Elsevier Pub. Co., 1975
Buku Teks
Hall, John W., author
Yale University Press, 1974
Buku Teks