Fakultas Teknik Universitas Indonesia, 2001
UI - Skripsi (Membership)
Andi Zubaida Assaf, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2000
UI - Tesis (Membership)
Emery, Edwin, editor
Dodd, Mead Company, 1968
Buku Teks
Wright, Charles Robert, author
Random House, 1975
Buku Teks
Hovland, Carl I., author
Princeton University Press, 1949
Buku Teks