Birmingham, David, author
Cambridge University Press, 1993
Buku Teks
Hall, Walter Phelps, author
Ginn and Company, 1953
Buku Teks
edited by Helena Caseli
Springer-Verlag, 2012
eBooks
Williamson, James A., author
Macmilan and Co,, 1950
Buku Teks
Hanioglu, M. Sükrü, author
Princeton univ. press, 2010
Buku Teks