edited by David Popenoe
Rutgers University Press, 1969
Buku Teks
Berry, Brian J.L., author
Prentice-Hall, 1970
Buku Teks
edited by D. T. Herbert and R. J. Johnston
John Wiley & Sons, 1981
Buku Teks
Ningsih Robi, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2006
UI - Tesis (Membership)
Lefebvre, Henri, author
University of Minnesota Press, 2003
Buku Teks