Maula, M. I. ., A. L. . Aji, M. B. . Aliyafi, I. Y. . Afif, M. I. . Ammarullah, T. I. . Winarni, and J. . Jamari. “The Subjective Comfort Test of Autism Hug Machine Portable Seat”. Journal of Intellectual Disability - Diagnosis and Treatment, vol. 9, no. 2, Apr. 2021, pp. 182-8, doi:10.6000/2292-2598.2021.09.02.4.