Illinois, 1962
Buku Teks
edited by Donald E. Edgar
McGraw-Hill, 1975
Buku Teks
Hurn, Christopher J.
Allyn and Bacon, 1993
Buku Teks
Richard Arum, Irenee R. Beattie, Merced, Karly Ford, editors
SAGE Publications, 2015
Buku Teks
Stephen Pratama
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2016
UI - Skripsi Membership