SOPER, Jean. Mathematics for economics and business : an interactive introduction / Jean Soper. - Oxford, UK ; Malden, Mass. : Blackwell Publishers, c1999. - xx, 294 p. : ill. ; 1 computer optical disc (4 3/4 in.) Includes bibliographical references and index. ISBN: 0631207813 Subjects--Topical Terms: Economics, Mathematical.Business mathematics. Dewey Class. No.: 519.5