Katona, George
McGraw-Hill , 1964
Buku Teks
Edward, Richard C., author
Prentice-Hall, 1972
Buku Teks
Bennis, Warren G., author
Harper and Row, 1968
Buku Teks
Galbraith, John Kenneth, 1908-2006, author
Houghton Miffiln, 1958
Buku Teks
Katona, George
McGraw-Hill Book , 1960
Buku Teks