edited by Talcott Parsons
Free Press, 1961
Buku Teks
Stevens, Edward
McGraw-Hill, 1987
Buku Teks
Levine, Daniel U.
Allyn and Bacon, 1992
Buku Teks
Bradley Levinson, Mica Pollock
Malden, MA : Wiley-Blackwell, 2016
Buku Teks
Organisation for Economic Co-operation and Development, 1974
Buku Teks