Kennedy, J., author
Macmillan, 1962
Buku Teks
Kennedy, J., author
St. Martin`s Press, 1967
Buku Teks
Buku Teks
Winstedt, Richard, 1878-1966, author
Hutchinson University Library, [Date of publication not identified]
Buku Teks
Boak, Arthur E.R.
Macmillan, 1961
Buku Teks