Hailstones, Thomas J.
Contemporary economic problems and issues
South-Western Publishing, 1985
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Economic, social, and cultural rights in international law: contemporary issues and challenges
edited by Eibe Riedel, Gilles Giacca and Christopher Golay
Oxford University Press, 2014
 Buku Teks SO
Issues in contemporary international health
edited by Thomas A. Lambo and Stacey B. Day
Plenum Medical Book Co., 1990
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Wardlaw, Gordon M., 1912-1989
Contemporary nutrition : issues and insights
McGraw-Hill, 2000
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Contemporary issues in social psychology
edited by Lawrence S. Wringtsman
Wadsworth, 1968
 Buku Teks SO