Edward, Richard C., author
Prentice-Hall, 1972
Buku Teks
Ehrmann, Henry W., author
Little, Brown & Co., 1968
Buku Teks
Katona, George
McGraw-Hill , 1964
Buku Teks
Galbraith, John Kenneth, 1908-2006, author
Houghton Miffiln, 1958
Buku Teks
The Nippon Foundation
Sunta Press, 2014
Buku Teks