Introduction to information systems 2026-02-16T00:41:31+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - O'Brien, James A; Marakas, George M. (McGraw-Hill Irwin, 2010)