Soper, J. (1999). Mathematics for economics and business: An interactive introduction. Blackwell Publishers.
Lua i Stíl Chicago (17ú heag.)Soper, Jean. Mathematics for Economics and Business: An Interactive Introduction. Oxford, UK ; Malden, Mass.: Blackwell Publishers, 1999.
Lua MLA (8ú heag.)Soper, Jean. Mathematics for Economics and Business: An Interactive Introduction. Blackwell Publishers, 1999.
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