Ferguson, Wallace K.
A survey of European civilization
Houghton Mifflin , 1958
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The European past II
edited by Shepard B. Clough ... [and others]
Macmillan, 1970
 Buku Teks SO
Friedell, Egon
A Cultural history of the modern age; the crisis of the European soul from the Black Death to the World war
Alfred A. Knopf, 1953
 Buku Teks SO
Bouman, P. J. (Pieter Jan)
Van Renaissance tot wereldoorlog : een cultuursociologische studie
H.J. Paris, 1948
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Friedell, Egon
A cultural history of the modern age : the crisis of the European soul from the Black Death to the World war; Vol. II
Alfred A. Knopf, 1954
 Buku Teks SO