Eric A. Posner
Ashgate/Dartmouth, 2001
Buku Teks
Brueckner, Jan K.
MIT Press, 2011
Buku Teks
Barnes, Irston R.
Appleton Century Crofts, 1942
Buku Teks
Galbraith, John Kenneth, 1908-2006
Penguin Books, 1929
Buku Teks
Troxel, Charles Emery, 1908-
Rinehart, 1974
Buku Teks