Watuliu, Winston Tommy, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2005
UI - Tesis (Membership)
Sedarmayanti, author
Mandar Maju, 2000
Buku Teks
Roeber, Richard J.C., author
Addison-Wesley, 1973
Buku Teks
Patten, Thomas H., Jr.
John Wiley & Sons, 1981
Buku Teks
Dunphy, Dexter C., author
McGraw-Hill, 1985
Buku Teks