Robinson, Joan
The economics of imperfect competition
MacMillan and Co.,Limited, 1948
 Buku Teks
Lipsey, Richard G., 1928-
Economics
Harper Collin, 1996
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Adreson, W. H. Locke
Economics
Prentice Hall of India, 1986
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Samuelson, Paul A. (Paul Anthony), 1915-2009
Economics
McGraw-Hill, 1992
 Buku Teks
Samuelson, Paul A. (Paul Anthony), 1915-2009
Economics
McGraw-Hill, 1998
 Buku Teks