Muñiz-Fraticelli, Victor Manuel, author
Oxford University Press, 2014
Buku Teks
Murray, Alexander, author
Oxford University Press, 2016
eBooks
Maxell, Robert L., author
American Library Association, 2002
Buku Referensi
Artikel Jurnal
Friedman, Lawrence M., 1930-, author
Harvard University Press, 1990
Buku Teks