Appelrouth, Scott
SAGE, 2016
Buku Teks
Leydesdorff, Loet, author
Universal, 2003
Buku Teks
edited by Talcott Parsons
Free Press, 1961
Buku Teks
Schrag, Clarence C., author
Harper & Row, 1963
Buku Teks
Zanden, James W. Vander, author
John Wiley & Sons, 1979
Buku Teks