Agénor, Pierre-Richard, author
Princeton University Press, 2015
Buku Teks
edited by Stuart Corbridge
Edward Arnold, 2002
Buku Teks
Thorp, Willard L., author
Organisation for Economic Co-operation and Development , 1964
Buku Teks
Elkan, Walter
The English Language Book Society ; Penguin Books, 1973
Buku Teks
Rothstein, Robert L., author
Columbia University Press, 1977
Buku Teks