Rahman, S. A., N. N. Isham, M. K. A. Omar, and N. Ibrahim. “Smartphone Addiction Awareness Campaign: An Implementation”. International Journal of Synergy in Engineering and Technology, Vol. 2, no. 2, Dec. 2021, pp. 39-47, https://ijset.tatiuc.edu.my/index.php/ijset/article/view/103.