Prasetya, Didik Dwi, and Tsukasa Hirashima. “Design of Multimedia-Based Digital Storybooks for Preschool Education”. International Journal of Emerging Technologies in Learning (iJET) 13, no. 02 (February 27, 2018): pp. 211–225. Accessed April 23, 2024. https://online-journals.org/index.php/i-jet/article/view/8188.