Hastie, Reid, author
Sage Published, 2010
Buku Teks
Gallagher, Charles A.
McGraw-Hill International Book Company, 1980
Buku Teks
Kahn, Herman, author
Morrow Quill Paperbacks, 1979
Buku Teks
Koppel, Robert, author
McGraw-Hill, 2011
Buku Teks
Koppel, Robert, author
Mc Graw-Hill, 2012
Buku Teks