K. B., M., S. Raza, S. U. Nayak, and V. Krishna. “Evaluation of Audio-Visual Aids As a Medium of Periodontal Health Education for Patients With Periodontitis”. International Journal Of Community Medicine And Public Health, vol. 10, no. 9, Aug. 2023, pp. 3289-94, doi:10.18203/2394-6040.ijcmph20232692.