University of Wiscnsin Press, 1968
Buku Teks
Lynne Rienner Publisher, Inc, 1986
Buku Teks
Farer, Tom J., author
Carnegie Endowment for International Peace, 1976
Buku Teks
Bohannan, Paul, author
The National History Press, 1964
Buku Teks
Murdock, George Peter, author
McGraw-Hill, 1959
Buku Teks