Ghazali, R. binti, S. R. . Md Sakip, and I. . Samsuddin. “Reliability and Validity of the Questionnaire for Autism Environment: A Pilot Survey”. Environment-Behaviour Proceedings Journal, vol. 5, no. 15, Dec. 2020, pp. 205-12, doi:10.21834/ebpj.v5i15.2470.