Lipsey, Richard G., 1928-, author
HarperCollinsCollege Publishers, 1996
Buku Teks
Lipsey, Richard G., 1928-, author
Pearson, 2008
Buku Teks
McConnell, Campbell R., author
McGraw-Hill, 2009
Buku Teks
Harvey, Jack, 1917-, author
Macmillan, 1973
Buku Teks
Clark, James E., author
Houghton Mifflin, 2002
Buku Teks