Al Hassan E, Mohammed A, Ibrahim A. Designing a Model Based on the Constructive Theory According to the Integrated E-learning Pattern and Measuring its Effectiveness in Achieving Grammar Rules among Students Teachers (Arabic language major) at the Faculties of Education at Sudanese Universi. Edu [Internet]. 2021 Sep. 1 [cited 2024 Jul. 2];48(3):55-73. Available from: http://dsr.ju.edu.jo/djournals/index.php/Edu/article/view/2857