edited by A.W. Ward and A.R. Waller
Macmillan, 1939
Buku Teks
Sampson, George
Cambridge University Press, 1972.
Buku Teks
Sampson, George
University Press, 1959
Buku Teks
edited by Dominic Head
Cambridge University Press, 2016
Buku Teks
Sampson, George
University Press, 1949
Buku Referensi