Mann, Thomas
The Oxford guide to library research
Oxford University Press, 1998
 Buku Teks
Bryant, David
Finding information the library way: a guide to reference sources
Connecticut Library Professional, 1987
 Buku Teks
Brundage, Anthony, 1938-
Going to the sources : a guide to historical research and writing
John Wiley &​ Sons, Inc., 2018
 Buku Teks
Kahn, Miriam B.
Protecting your library's digital sources: the essential guide to planning and preservation
[American Library association;American Library association, American Library association], 2004
 eBooks
Bergson, Henri
The two sources of morality and religion
Doubleday Anchor Books, 1956
 Buku Teks