Rickard, J.A.
Ancient, medieval & modern history
Barnes & Noble, 1952
 Buku Teks SO
An encyclopedia of world history : ancient, medieval, and modern chronologically arranged
compiled and edited by William L. Langer
Houghton Mifflin, 1968
 Buku Referensi
Trevelyan, George Macaulay, 1876-1962
History of England
Longmans, Green, 1945
 Buku Teks SO
McGarry, Daniel D.
Outline of medieval history
Littlefield, Adams, 1968
 Buku Teks
Lurier, Harold E.
Basic facts history of western civilization (prehistory to 1600)
Collier Books, 1963
 Buku Teks SO