A comparison between Piagetian cognitive level and physics achievement for twelfth grade students in Saudi Arabia 2026-02-15T20:09:58+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Al-Mazroe, Hafeez Mohamed H., 1953- (University of Northern Colorado,college of Arts and Science, Department of Science Education, 1982)