Hyman, David N.
Study guide for use with economics
Richard D. Irwin, 1971
 Buku Teks
Leftwich, Richard H.
Study guide to accompany economics of sosial issues
United States of America, 1984
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Lind, Douglas A.
Study guide for use with statistical techniques in business and economics
McGraw-Hill-Irwin, 2010
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Sharp, Ansel M.
Economics of social issues
McGraw-Hill, 2002
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Sharp, Ansel M.
Economics of social issues
Richard D. Irwin, 1990
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