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