Artikel Jurnal
McClelland, David Clarence, author
Vakils, Feffer and Simon Private, 1961
Buku Teks
Luard, Evan, author
Macmillan, 1990
Buku Teks
Tomasson, Richard F., author
Random Home, 1970
Buku Teks
Suryadharma Ali, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2003
UI - Tesis (Membership)