Basseches,Nikolaus
Elsevier, 1960
Buku Teks
Djilas, Milovan, 1911-1995
Harcourt Brace ,
Buku Teks
Djilas, Milovan, 1911-1995
Harcourt, Brace & World, 1962
Buku Teks
Fischer, George
Harvard University Press, 1952
Buku Teks
Ulam, Adam Bruno
Beacon Press, 1973
Buku Teks