Spulber, Nicolas
Foundations of Soviet strategy for economic growth selected Soviet essays, 1930-1942 Nicolas Spulber
Indiana Univeristy Press , 1965
 Buku Teks
MacIver, Robert M.
Democracy and the economic challenge
Alfred A. Knopf, 1952
 Buku Teks
Aubrey, Henry G.
Coexistence: economic challenge and response
National Planning Association, 1961
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Benton, William
This is the challenge : the Benton reports of 1956-1958 on the nature of the Soviet threat
Associated College Press, 1958
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Weil, David N.
Economic growth
Pearsons Addison-Wesley, 2009
 Buku Teks