Titmuss, Richard M.
Essays on the welfare state / Richard M. Titmuss
George Allen and Unwin, 1959
Buku Teks
Technological change and income distribution in Europe
Artikel Jurnal
Remington, Richard D.
Statistics with applications to the biological and health sciences / Richard D. Remington and M. Anthony Schork
Prentice Hall Inc., 1985
Buku Teks
Dornbusch, Sanford M.
A primer of social statistics / Sanford M. Dornbusch, Calvin F. Schmid
McGraw-Hill, 1955
Buku Teks SO
Blalock, Hubert M.
Social statistics
McGraw-Hill, 1960
Buku Teks SO