Kalsum, Umi, Fadilaturrahmah, and Ido Yupiter. “The Use of Flashcards in Vocabulary Mastery of The Students With Down Syndrom at SLB Negeri Pagaralam”. JEIT (Journal of Educational Innovations and Technologies) 1, no. 2 (August 1, 2025): 34–43. Accessed August 17, 2025. https://journal.ciptapustaka.com/index.php/JEIT/article/view/68.