M. Mokhtarzadeh and M. Taheri Qomi and M. Nikafrooz and A. Atashafrooz, Hearing Aids Maintenance Training for Hearing-Impaired Preschool Children with the Help of Motion Graphic Tools. journal = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology. October 2020, vol. 167(11). 1064 - 1067 [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10011554.