Gildersleeve, B.L., author
Macmillan, 1948
Buku Teks
Strearn, William T.
David & Charles, 1983
Buku Referensi
Giles, J. P.
Rigby, 1962
Buku Teks
Gildersleeve, Virginia Crocheron, author
Macmillan, 1954
Buku Teks
revised by J.R.V. Marchant and Joseph F. Charles
Cassell, 1952
Buku Referensi