Richterich, Rene
Pergamon Press, 1980
Buku Teks
Stevick, Earl W.
Cambridge University Press, 1982
Buku Teks
edited by M.G. Hesse
North-Holland, 1975
Buku Teks
Huebener, Theodore
New York University Press, 1967
Buku Teks
Richards, Jack C.
Cambridge University Press, 2006
Buku Teks