Ahmadizade, Fahimeh, Said Ali mohammad Mousavi, and Narges Babakhani. 2025. “Comparison of the Effectiveness of Active and Passive Music Therapy on Echolalia and Pitch Frequency in Children With Level 1 Autism Spectrum Disorder”. Psychological Research in Individuals With Exceptional Needs 3 (2): 73-84. https://www.journals.kmanpub.com/index.php/prien/article/view/4582.