Keshavarz, Mohammad Hossein, and Mahmud Khamis. “AN INVESTIGATION INTO PRONUNCIATION PROBLEMS OF HAUSA-SPEAKING LEARNERS OF ENGLISH”. International Online Journal of Education and Teaching 4, no. 1 (January 10, 2017): 61–72. Accessed December 25, 2025. https://iojet.org/index.php/IOJET/article/view/152.