Day, A. C. L.
Oxford University Press, 1960
Buku Teks
Day, A. C. L.
Clerendon Press, 1967
Buku Teks
Harris, Laurence, author
McGraw-Hill, 1985
Buku Teks
Newlyn, W.T., author
Oxford University Press, 1962
Buku Teks
Niehans, Jurg, author
John Hopkins University Press, 1980
Buku Teks