Burns, Edward McNall, 1897-1972
Western civilizations : their history and their culture; vol. 1
W.W. Norton & Company, 1973
 Buku Teks
Birket-Smith, Kaj
The Paths of culture: a general ethnology
University of Wisconsin Press, 1965
 Buku Teks
Rice, Eugene F.
The foundations of early modern Europe 1460-1559
W.W. Norton, 1970
 Buku Teks
Burns, Edward McNall, 1897-1972
World civilizations : their history and their culture; Volume 1
WW Norton, 1974
 Buku Teks
Muller, Herbert J.
The Uses of the past/ Herbert J. Muller
Oxford University Press , 1953
 Buku Teks