Heeger, Gerald A.
Macmillan, 1974
Buku Teks
Cammack, Paul Anthony
Macmillan, 1993
Buku Teks
The United States-Indonesia Society, 1997
Buku Teks
Joseph Maier, Richard W.Weatherhead
F. A. Praeger, 1964
Buku Teks
edited by Gabriel A. Almond, James S. Coleman
Princeton University Press, 1960
Buku Teks