Sussman, Art, author
Jossey-Bass , 2006
Buku Referensi
Foer, Joshua, author
Penguin Books, 2011
Buku Teks
Gribbin, John, author
Yale University Press, 1999
Buku Referensi
Yekyong Publications, 1987
Buku Teks
Chamberlin, Marry W., author
American Library Association, 1959
Buku Referensi