9 Audio-Visual Teaching Materials-Namely, Magnetic Pre-Recorded Tape, Phonograph Records, Movies, Films and Filmstrips, and Photographic Slides
16 Printed Teaching Material-Namely, Books, Pamphlets, and Folders About Educational Techniques, Learning Aids, and Teaching Materials; Posters and Printed Forms
41 Educational Consulting Services for Teaching in the Fields of Health, Work and Mass Media