Problems and solutions on electromagnetism 2026-02-15T12:57:39+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Lim, Yung-kuo (Major American universities Ph. D. qualifying questions and solutions, 1993)