Study and teaching 34 Arabic language 31 Audio-visual aids 31 Dissertations 31 Dissertations, Academic 29 Visualization 23 Study and teaching Audio-visual aids 18 English language 16 Study and teaching (Secondary) 15 Information visualization 14 Education 12 People with visual disabilities 11 Audio-visual education 9 Educational technology 9 Study and teaching Foreign speakers 9 Visual perception 9 Computer-assisted instruction 8 Interactive multimedia 8 Visual education 8 Computer graphics 7 Mathematics 7 Technique 7 Children with visual disabilities 6 Social aspects 6 Study and teaching Audio-visual instruction 6 Visual communication 6 Activity programs 5 Blind 5 Computer software 5 Data processing 5