Kuznets, Simon Smith, 1901-
Shares of upper income groups in income and saving
National Bureau of Economic Research, 1950
 Buku Teks
Achieving universal coverage of health care: experiences from middle and upper income countries
editors, Sanguan Nitayarumphong, Anne Mills
NHSO, 2005
 Buku Teks
Morgan, Theodore
Income and employment
Prentice-Hall, 1956
 Buku Teks
Morgan, Theodore
Income and employment
Prentice-Hall, 1948
 Buku Teks
Income redistribution
edited by Colin Campbell
American Enterprise Institute for Public Policy Research, 1977
 Buku Teks