Westland, Peter
English University, 1950.
Buku Teks
Evans, Ifor, Sir, author
Penguin Books, 1960
Buku Teks
Sampson, George, author
University Press, 1959
Buku Teks
Sampson, George, author
University Press, 1949
Buku Referensi
Legouis, Emile, author
J.M. Dent and Sons, 1948
Buku Teks