Post, Gerald V., author
McGraw-Hill Irwin, 2003
Buku Teks
Evan M. Berman [and others]
Sage, 2001
Buku Teks
Smith, George Albert, author
Richard D. Irwin, 1960
Buku Teks
Fulmer, William E., author
Richard D. Irwin, 1980
Buku Teks
Kerin, Roger A., author
Pearson, 2013
Buku Teks