Mubasyira, Mu’thia, et al. “The Progress of Speech Production in People With Autism (Case Study on a Girl Named Aliya Salsabila Ramadhani)”. International Journal of Multidisciplinary: Applied Business and Education Research, vol. 2, no. 11, Nov. 2021, pp. 1218-25, https://doi.org/10.11594/10.11594/ijmaber.02.11.13.