Dr. Bushra Salahuddin, Muhammad Mujtaba Haider, and Dr. Shabnam Razaq Khan. “Impact of Paid and Unpaid Tuition on Students’ Academic Performance”. ` 5, no. 01 (February 15, 2026): 1259–1268. Accessed February 16, 2026. https://www.assajournal.com/index.php/36/article/view/1421.