Morrell, James
Penguin Books, 1972
Buku Teks
Michel-Kerjan, Erwann, author
Public Affairs, 2010
Buku Teks
Yuri Ermoliev, Marek Makowski, Kurt Marti, editors
[Springer, ], 2012
eBooks
McAdams, Alan K., author
Macmillan, 1970
Buku Teks
Benton, John B.
Lexington Books , 1973
Buku Teks