edited by Felix Geyer and
Sage, 1986
Buku Teks SO
John Wiley & Sons, 1979
Buku Teks SO
Tono Purwantoro, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2002
UI - Tesis Membership
edited by Bankole Osita Awuzie, Peter McDermott
Springer Nature, 2019
eBooks
edited by Charles R. Dechert
A. Clarion book, 1966
Buku Teks SO