Lynne Rienner Publisher, Inc, 1986
Buku Teks
Fitzsimmons, James A., author
McGraw-Hill , c.1982
Buku Teks
Lawrence Erlbaum Associates, Publishers, 2004
Buku Teks
Murdock, George Peter, author
McGraw-Hill, 1959
Buku Teks
Murdock, George Peter, author
McGraw-Hill, 1959
Buku Teks