Statistical techniques in business and economics 2026-02-15T22:38:45+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Mason, Robert Deward, 1919- (Irwin series in quantitative analysis for business, 1967)