Megan Richardson
The right to privacy: origins and influence of a nineteenth-century idea
Cambridge University Press, 2017
 eBooks
Lehman, B.H.
Carlyle's theory of the hero its sources development, history, and influence on Carlyle's work: a study of a nineteenth century idea
Duke University Press, 1928
 Buku Teks
Cairns, John C.
The nineteenth century 1815-1914
Free Press, 1965
 Buku Teks
British authors of the nineteenth century
edited by Stanley J. Kunitz, Howard Haycraft
Wilson, 1936
 Buku Referensi
Hearder, H.
Europe in the nineteenth century
 Buku Teks