Thiroux, Jacques P. author
Pearson, 2015
Buku Teks
Thompson, Arthur A., 1940-, author
Prentice-Hall, 1989
Buku Teks
Wachtel, Paul, author
McGraw-Hill , 1989
Buku Teks
Seckler-Hudson, Catheryn, author
Washington, D.C., The American University Press
Buku Teks
Brigham, Eugene F., 1930-, author
The Dryden Press, 1994
Buku Teks