Rivers-Smith, S.
Oxford University Press, 1951
Buku Teks
French, F. G.
Oxford University Press, 1947
Buku Teks
McKay, Herbert
Oxford University Press, 1950
Buku Teks
Pincas, Anita
Macmillan Press, 1983
Buku Teks
Barker, D.W.
Macmillan and Co., 1953
Buku Teks