Bain, A.D., author
Penguin Books, 1970
Buku Teks
Keynes, John Maynard, author
A Harvest book, 1949
Buku Teks
Keynes, John Maynard, author
Harcourt, Brace and Company, 1935
Buku Teks
Fry, Maxwell J., author
John Hopkins University Press, 1995
Buku Teks
Louis-Philippe Rochon, Matias Vernengo, editor
Edward Elgar, 2001
Buku Teks