Audiovisual aids. Visual communication 4 Humans 3 N Visual arts (General) 3 female 3 human 3 male 3 Adult 2 Auteur theory 2 Autism 2 Content analysis 2 Cross-Sectional Studies 2 Dental education 2 Female 2 Film studies 2 General special. Including optical illusion and visual perception 2 General works 2 Journalism. The periodical press, etc. Press 2 Library Science. Information Science 2 Male 2 NX Arts in general 2 Nonverbal communication 2 P. Ramlee 2 Special subjects, characters, persons, religious arts, etc 2 Teaching (Principles and practice) 2 adult 2 child 2 comparative study 2 controlled study 2 cross-sectional study 2 oral health 2