The problems of rural education 2026-02-16T06:11:28+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Griffiths, V. L. (Vincent Llewellyn) (Fundamentals of educational planning,, 1968)