Hirsch, Julius
New horizons in business : a lecture series organized
Harper & Brothers, 1955
 Buku Teks
Fels, Rendings, editor
American business cycle; 1865 - 1897 / Rendings Fels
The University of North Carolina Press, 1959
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Kadish, Jules E.
Global high-tech marketing : an introduction for technical managers and engineers
Artech House , 1993
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Clark, John M.
Strategic factors in business cycles
National Bureau of Economic Resesarch, 1934
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Albrecht, Karl, 1941-
Service America! : doing business in the new economy
Dow Jones-Irwin , 1985
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