Jordan, Amos A., author
Praeger, 1962
Buku Teks
Montgomery, John D., author
Frederick A. Praeger, 1962
Buku Teks
M. Iman Usman, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Tugas Akhir
Vernon, Raymond, author
Free Press, 1989
Buku Teks
Southern Methoddist University Press, 1962
Buku Teks