Lawson, Wenn B., and Brynn A. Dombroski. “Problems With Object Permanence: Rethinking Traditional Beliefs Associated With Poor Theory of Mind in Autism”. Journal of Intellectual Disability - Diagnosis and Treatment 5, no. 1 (April 10, 2017): 1–6. Accessed April 27, 2024. https://www.lifescienceglobal.com/pms/index.php/jiddt/article/view/4562.