Business result upper-intermediate Student's Book /by Michael Duckworth, Rebecca Turner 2026-02-15T14:23:44+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Duckworth, Michael; Lane, Alastair; Turner, Rebecca (Oxford University Press, 2008)