Ng, Perng Jeu, and Mariam Mohamad. “Effects of Redundancy and Modality Principle in Multimedia Learning: Concentration on Motivation and Gender DIfferences Among Primary School Students”. Journal of ICT in Education 1 (June 29, 2019): 42–53. Accessed April 17, 2025. https://ejournal.upsi.edu.my/index.php/JICTIE/article/view/2590.