D. S. Abdullahi Salad, “Newman Method Used to Analyze the Math Performance of Somali Sixth-Grade Students”, IJSSCFRT, vol. 19, no. 1, pp. 54–65, Jul. 2023, Accessed: Sep. 21, 2025. [Online]. Available: https://ijsscfrtjournal.isrra.org/Social_Science_Journal/article/view/1407