محمد نوري محمود الحيالي احمد. “Learning Difficulties and Non-Harmonious Behaviour of Special Education Students”. College of Basic Education Research Journal 3, no. 4 (April 1, 2007): 18–38. Accessed October 26, 2025. https://stats.uomosul.edu.iq/index.php/berj/article/view/38601.