Grant, A. J.
Longmans, 1966
Buku Teks
Wood, Anthony, 1923-, author
Longman, 1983
Buku Teks
Taylor, A.J.P. (Alan John Percivale), 1906-1990, author
Penguin Books in association with Hamish Hamilton, 1967
Buku Teks
Anderson, M.S., author
Longman, 1971
Buku Teks
Ashley, Maurice, author
Frederick A. Praeger, 1969
Buku Teks