Handbook on teaching educational psychology 2026-02-15T16:53:59+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Ripple, Richard E; Davis, J. Kent; Treffinger, Donald J (Educational psychology, 1977)