Hanbury, Harold Grenville
A history of English law; Vol. I
Methuen, 1956
 Buku Teks
Westland, Peter
The teach yourself history of English literature; Vol. VI
English University, 1950.
 Buku Teks SO
Otis, William Bradley
An outline-history of English literature; Vol. 1: to Dryden
Barnes & Noble, [c1937]
 Buku Teks SO
The encyclopedia of religion; Vol. XI & XII
edited by Mircea Eliade
Macmillan, 1987
 Buku Referensi
Great books of the western world; Vol. XI
edited by Mortimer J. Adler
Encyclopedia Britanica, 1990
 Buku Referensi