Introductory mathematical analysis: for students of business and economics 2026-02-15T23:28:09+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Haeussler, Ernest F.; Paul, Richard S. (Reston Pub. Co., 1973)