Khan, A., Abdul Rahim, M. . Riaz, and Muhammad Kashif. “Using YouTube for Achieving Learning Efficiency: A Case Study of Karachi University Students”. 2023. SBBU Journal of Social Sciences, vol. 1, no. 1, Aug. 2023, pp. 47-59, http://journals.sbbusba.edu.pk/jss/index.php/abc/article/view/10.