Hamzah, Norhasyimah, et al. “Android Application Development Based on 2D Animation Video on Cyber Bullying Crimes Related to Threatening and Grooming ”. Research and Innovation in Technical and Vocational Education and Training, vol. 3, no. 1, June 2023, pp. 039-45, https://penerbit.uthm.edu.my/periodicals/index.php/ritvet/article/view/11737.