Rauch, Georg von
Frederick A. Praeger, 1962
Buku Teks
Walsh, Warren Bartlett
The University of Michigan Press, 1958
Buku Teks
Graham, Loren R.
Cambridge University Press, 1993
Buku Teks
Riasanovsky, Nicholas V.
Oxford University Press, 1963
Buku Teks
Thompson, June M.
Westview Press, 1990
Buku Teks