Pakasi, Soepartinah
Airlangga University Press, 1979
Buku Teks
Pitoyo, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2011
UI - Tesis (Open)
Ehrlich, J. W., author
Oceana Publications, 1962
Buku Teks
Machen, Arthur, author
Penguins Books, 1946
Buku Teks
Koupelis, Theo, author
Jones & Bartlett learning, 2011
Buku Teks