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Opresnik Management Guides

Cover of Projektmanagement

Book #5: Projektmanagement

Cover of 21st Century Marketing

Book #6: 21st Century Marketing

Cover of UEberzeugt! Erfolgreich kommunizieren, prasentieren und verhandeln

Book #6: UEberzeugt! Erfolgreich kommunizieren, prasentieren und verhandeln

Cover of Convinced! Communicate, present and negotiate successfully

Book #7: Convinced! Communicate, present and negotiate successfully

Cover of Marketing

Book #9: Marketing