Fazil, Hina, Rimsha Ramzan, and Muqaddas Anwar. 2022. “Effectiveness of Visual Lessons on YouTube During Lockdown in 2nd Wave of Covid -19 for Children With Intellectual Disabilities Studying in Child Welfare Center Perceived by Their Parents”. Journal of Development and Social Sciences 3 (4):11-18. https://doi.org/10.47205/jdss.2022(3-IV)02.