Mansfield, Edwin
Economic problems : principles, problems, decisions
W.W. Norton, 1974
 Buku Teks
Meade, James E.
Problems of economic union
University of Chicago Press, 1953
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Kiekhofer, William H.
Economic principles, problems, and policies
D. Appleton Century, 1946
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Bye, Raymond T.
Applied economics : the application of economic principles to the problems of economic life
Appleton-Century-Crofts, 1947
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Bish, Robert L.
Economic principles and urban problems
Prentice-Hall, 1974
 Buku Teks