Corwin, Edward S.
New York University Press, 1956
Buku Teks
Schubert, Glendon A., Jr
University of Minnesota Press, 1956
Buku Teks
Pious, Richard M.
Basic Books, 1944
Buku Teks
Rossiter, Clinton, 1917-1970
The American Library, 1960
Buku Teks SO
Makarim Wibisono [and others]
The Permanent Mission of the Repubilc of Indonesia to the Uniterd Nations, 2001
Buku Teks