Tan, Yan You, and Che Samihah Che Dalim. “Let’s Learn Mandarin! : A Chinese Language Vocabulary Learning Mobile Application For 7 Years Old Children”. Applied Information Technology And Computer Science, vol. 3, no. 2, Nov. 2022, pp. 685-04, https://penerbit.uthm.edu.my/periodicals/index.php/aitcs/article/view/7305.