Maulana, E., U. Suhud, J. Susono, A. D. Buchdadi, and A. K. “Measuring YouTube Channel Subscriber Loyalty: The Role of Quality, Corporate Image and Viewer Satisfaction”. The International Journal of Social Sciences World (TIJOSSW), vol. 2, no. 2, Sept. 2020, pp. 32-39, https://www.growingscholar.org/journal/index.php/TIJOSSW/article/view/58.