Essentials of systems analysis and design 2026-02-16T01:04:26+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Valacich, Joseph S.; George, Joey F.; Hoffer, Jeffrey A. (Pearson Education Limited, 2015)