Hald, Earl C.
Business cycles
Houghton-Mifflin, 1954
 Buku Teks
Bowers, David A.
An introduction to business cycles and forecasting
Addison-Wesley, 1985
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Hamberg, Daniel
Business cycles
Macmillan, 1951
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Mitchell, Wesley C.
Business cycles : the problem and its setting
National Bureau of Economic Research, 1954
 Buku Teks
Mitchell, Wesley C.
Business cycles : the problem and its setting
National Bureau of Economic Researsch, 1930
 Buku Teks