Abdullah, M. Almanie. “Quality of Services in the Comprehensive Rehabilitation Centers for Individuals With ID: A Descriptive Study Using SERVQUAL Model”. Journal of Intellectual Disability - Diagnosis and Treatment 10, no. 1 (February 9, 2022): 37–42. Accessed May 10, 2024. https://lifescienceglobal.com/pms/index.php/jiddt/article/view/8578.