تغريد بنت عبدالفتاح بن محمد الرحيلي2022-05-192022-05-191237https://drepo.sdl.edu.sa/handle/20.500.14154/9806The study aimed at investigating the effectiveness of computerized educational software on achievement and retention of the different levels of students in intermediate stage of 3rd grade in the subject of history in Al-Abrar private intermediate school for girls in Al-Madinah Al-Munuwarah. The sample was divided into two groups.ar-SAThesis