Rivers-Smith, S.
Oxford University Press, 1949
Buku Teks
edited by Clarence L. Barnhart and Robert K. Barnhart
World Book-Childcraft International, 1978
Buku Referensi
French, F. G.
Oxford University Press, 1947
Buku Teks
McKay, Herbert
Oxford University Press, 1950
Buku Teks
Pincas, Anita
Macmillan, 1983
Buku Teks