Abdul-Majeed, Maysaa Raheed, and Fatima Khudair AlJubouri. “Investigating Students’ Ability in Identifying English Modals”. International Journal of Social Sciences & Educational Studies 1, no. 1 (September 25, 2014): 30–46. Accessed May 24, 2025. https://ijsses.tiu.edu.iq/index.php/ijsses/article/view/482.