Ansar, F., W. Ali, A. . Zareef, N. Masud, S. Zahab, and H. Iftikhar. “Internet Addiction and Its Relationship With Depression and Academic Performance: A Cross-Sectional Study at a Medical School in Pakistan”. International Journal of Medical Students, vol. 8, no. 3, Dec. 2020, pp. 251-6, doi:10.5195/ijms.2020.740.