Derry, Gregory N., author
Princeton University Press , 1999
Buku Teks
Buckley, Francis J., author
Sage, 1999
Buku Teks
Aalseth, Patricia, author
Jones & Bartlett Learning, 2015
Buku Teks
Marcil, William Matthew, author
Delmar Cengage Learning, 2007
Buku Teks
McCarthy, John Joseph, 1909-2005, author
McGraw-Hill, 1978
Buku Teks