Mohamed Abo Elnour Abdel Mawla, Mostafa. “Grammatical Errors Among University Students: Causes and Sustainability of Treatment”. International Journal of Psychosocial Rehabilitation 24, no. 5 (July 31, 2020): 2939–2955. Accessed May 23, 2025. https://psychosocial.com/index.php/ijpr/article/view/4973.